• About
    • Core Values
    • ISO Certification
    • Testimonials
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA-Zentgraf
    • Eaton Walterscheid
    • AF Hydro
    • Oleo-Tecnica
    • KPL Industry
    • Bothwell
    • Inteva
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Tubes
      • Copper Coils
      • Walform Tubes
    • Clamps >
      • Stauff Clamps
      • Tube Clamps
      • Stauff ACT Clamps
      • Rubber Insert Clamps
    • Flanges >
      • SAE Flange
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • High Pressure Check Valves
      • Needle Valves
      • SAE Flange Ball Valves
      • SAE Flange Check Valves
      • ISO6164 Ball Valve
    • High Pressure Fittings >
      • Hydraulic Compression Fittings
      • Forged Pipe Fittings
      • JIC Fittings
      • Twin / Double Ferrule Fittings
      • Quick Connect Couplings
      • Adapter Fittings
    • Low Pressure Valves >
      • Low Pressure Ball Valves >
        • 1 PC Ball Valve
        • 2 PC Ball Valve
        • 3 PC Ball Valve
        • 3 Way L-Port Ball Valve
        • 3 Way T-Port Ball Valve
        • Brass Ball Valve
        • Brass Mini Ball Valve
        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Flange End Swing Check Valve
        • JIS 10K SS316 Flange End Swing Check Valve
        • ANSI 150# Cast Steel Flange End Swing Check Valve
        • Threaded End SS316 Swing Check Valve
        • Threaded End Brass Swing Check Valve
      • Single Plate Check Valve
      • Dual Plate Check Valve
      • Spring Check Valve
      • Y-strainers >
        • ANSI 150# SS316 Flange End Y-Strainers
        • JIS 10K SS316 Flange End Y-Strainers
        • Threaded End SS316 Y-Strainers
        • ANSI 150# Cast Steel Flange End Y-Strainers
        • JIS 10K Cast Steel Flange End Y-Strainers
      • Gate Valves >
        • ANSI 150# SS316 Flange End Gate Valve
        • JIS 10K SS316 Flange End Gate Valve
        • Threaded End SS316 Gate Valve 200PSI
        • Threaded End SS316 Gate Valve 800PSI
        • ANSI 150# Cast Iron Flange End Gate Valve
        • JIS 10K Cast Iron Flange End Gate Valve
        • ANSI 150# Cast Steel Flange End Gate Valve
        • ANSI 150# Forged Steel Flange End Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Flange End Globe Valve
        • JIS 10K SS316 Flange End Globe Valve
        • Threaded End SS316 Globe Valve 200PSI
        • Threaded End SS316 Globe Valve 800PSI
        • ANSI 150# Cast Iron Flange End Globe Valve
        • JIS 10K Cast Iron Flange End Globe Valve
        • ANSI 150# Cast Steel Flange End Globe Valve
        • ANSI 150# Forged Steel Flange End Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Wafer Type Butterfly Valve
        • ANSI 150# Cast Iron Lug Type Butterfly Valve
    • Low Pressure Fittings >
      • Class 150# Fittings
      • Camlock Fittings
    • Accessories >
      • Stauff Pressure Gauges
      • Stauff Test Couplings
      • Stauff Tube Cleaning Systems
      • Stauff Level Gauges
      • Stauff Filler Breathers
      • Eaton Walterscheid Walform Machine
      • Eaton Walterscheid Anti Bloc Fett/Grease
      • Eaton Walterscheid Walform Seal
      • GS Hydro Retain Ring
      • GS Hydro Bonded Seals
      • O-Rings
      • Dowty Seals
  • MyRewards
    • BENEFITS
    • MyFAQ
    • Sign-up MyRewards
  • Catalogues
    • Pipes and Tubes
    • Clamps
    • Flanges
    • High Pressure Valves
    • High Pressure Fittings
    • Low Pressure Valves
    • Low Pressure Fittings
    • Accessories
  • News
  • Contact
CHUAN KOK
  • About
    • Core Values
    • ISO Certification
    • Testimonials
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA-Zentgraf
    • Eaton Walterscheid
    • AF Hydro
    • Oleo-Tecnica
    • KPL Industry
    • Bothwell
    • Inteva
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Tubes
      • Copper Coils
      • Walform Tubes
    • Clamps >
      • Stauff Clamps
      • Tube Clamps
      • Stauff ACT Clamps
      • Rubber Insert Clamps
    • Flanges >
      • SAE Flange
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • High Pressure Check Valves
      • Needle Valves
      • SAE Flange Ball Valves
      • SAE Flange Check Valves
      • ISO6164 Ball Valve
    • High Pressure Fittings >
      • Hydraulic Compression Fittings
      • Forged Pipe Fittings
      • JIC Fittings
      • Twin / Double Ferrule Fittings
      • Quick Connect Couplings
      • Adapter Fittings
    • Low Pressure Valves >
      • Low Pressure Ball Valves >
        • 1 PC Ball Valve
        • 2 PC Ball Valve
        • 3 PC Ball Valve
        • 3 Way L-Port Ball Valve
        • 3 Way T-Port Ball Valve
        • Brass Ball Valve
        • Brass Mini Ball Valve
        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Flange End Swing Check Valve
        • JIS 10K SS316 Flange End Swing Check Valve
        • ANSI 150# Cast Steel Flange End Swing Check Valve
        • Threaded End SS316 Swing Check Valve
        • Threaded End Brass Swing Check Valve
      • Single Plate Check Valve
      • Dual Plate Check Valve
      • Spring Check Valve
      • Y-strainers >
        • ANSI 150# SS316 Flange End Y-Strainers
        • JIS 10K SS316 Flange End Y-Strainers
        • Threaded End SS316 Y-Strainers
        • ANSI 150# Cast Steel Flange End Y-Strainers
        • JIS 10K Cast Steel Flange End Y-Strainers
      • Gate Valves >
        • ANSI 150# SS316 Flange End Gate Valve
        • JIS 10K SS316 Flange End Gate Valve
        • Threaded End SS316 Gate Valve 200PSI
        • Threaded End SS316 Gate Valve 800PSI
        • ANSI 150# Cast Iron Flange End Gate Valve
        • JIS 10K Cast Iron Flange End Gate Valve
        • ANSI 150# Cast Steel Flange End Gate Valve
        • ANSI 150# Forged Steel Flange End Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Flange End Globe Valve
        • JIS 10K SS316 Flange End Globe Valve
        • Threaded End SS316 Globe Valve 200PSI
        • Threaded End SS316 Globe Valve 800PSI
        • ANSI 150# Cast Iron Flange End Globe Valve
        • JIS 10K Cast Iron Flange End Globe Valve
        • ANSI 150# Cast Steel Flange End Globe Valve
        • ANSI 150# Forged Steel Flange End Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Wafer Type Butterfly Valve
        • ANSI 150# Cast Iron Lug Type Butterfly Valve
    • Low Pressure Fittings >
      • Class 150# Fittings
      • Camlock Fittings
    • Accessories >
      • Stauff Pressure Gauges
      • Stauff Test Couplings
      • Stauff Tube Cleaning Systems
      • Stauff Level Gauges
      • Stauff Filler Breathers
      • Eaton Walterscheid Walform Machine
      • Eaton Walterscheid Anti Bloc Fett/Grease
      • Eaton Walterscheid Walform Seal
      • GS Hydro Retain Ring
      • GS Hydro Bonded Seals
      • O-Rings
      • Dowty Seals
  • MyRewards
    • BENEFITS
    • MyFAQ
    • Sign-up MyRewards
  • Catalogues
    • Pipes and Tubes
    • Clamps
    • Flanges
    • High Pressure Valves
    • High Pressure Fittings
    • Low Pressure Valves
    • Low Pressure Fittings
    • Accessories
  • News
  • Contact

JIC FITTINGS

Description:
JIC fittings are made in accordance with SAE J514 standards. JIC fittings are most commonly known as 37 degree flare fittings, for its 37 degree flare on the seating surface. They are suitable for general hydraulic systems and industrial equipment applications such as fuel oil, deluge systems, and compressed air.

The materials used to fabricate JIC fittings are Steel and Stainless Steel. These fittings are widely used in high pressure application, as it can withstand up to 430 Bar working pressure.​
Brand:
Stauff
RFS Hydraulics​
Vertical Divider
HSME
HSME
Size Range
  • 1/4" to 1 1/2"
Design Standard
  • SAE J514 / ISO 8434-2 ​
Connection
  • JIC x JIC
  • JIC x NPT
  • JIC x BSPP
Material
  • Steel
  • SS316
Working Pressure
  • Up to 430 BAR
Origin
  • Korea
CATALOGUE
  • HSME JIC Fittings
  • ​JIC Fittings
LITERATURE
  • JIC Fittings

Having difficulties looking for JIC Fittings? We can help you because we have all sizes.
CONTACT US NOW!

Product Information of JIC Fittings

1. Specifications:​

JIC Fitting is a range of hydraulic fittings which is made in accordance with SAE J514 and ISO 8434-2 standards. The acronym JIC stands for Joint Industry Council. It is also known as the JIC 37 degrees flare fitting because it has a 37 degrees flare seating surface.

These fittings are used on oil hydraulic systems in many fields (fuel delivery, fuel power application, shipbuilding, mobile hydraulic equipment, etc). A JIC fitting system has three components that make a tubing assembly: fitting, flare nut, and sleeve.
JIC Components: Fitting, Flare Nut & Sleeve
JIC Fitting, Flare Nut & Sleeve

2. Material:​

Materials used to fabricate JIC fittings include carbon steel and stainless steel SS316L.

3. Sizes:​

JIC body and flare nut are available in outer diameter ("OD) sizes between 1/8" to 1 2". Sleeve has two different reading measurements, metric size (mm) and inch outer diameter ("OD). Sleeve size is available from 3mm to 50mm and 1/8" to 2". Fitting sizes are designated by the corresponding outside diameter of the tubing for the various types of tube ends.

JIC Fittings
SS316 JIC Fitting
4. Working Pressure:​

The standard working pressure of the fittings ranges from 1000 to 5000 psi for different sizes and connections. The minimum burst pressure is four times the working pressure. JIC fittings must be able to withstand twice the working pressure for a period of 1 minute without failure or leakage.

Please take note that the pressure rating of a same fitting may vary when it is connected to different equipment. For example, if a fitting with a low working pressure is connected to a pipe, it will result in an overall even lower working pressure. In all cases, always consider the lowest pressure as the maximum working pressure of the system.​

5. How does a JIC Fitting Works:​

For tube connections, the assembly procedure starts from the preparation of the tube. First, the nut and sleeve are inserted onto the end of a tube. With the use of a flaring tool, form the end of the tube to 37 degrees. Next, tighten the nut by using a spanner until the nut is tight and the sleeve grips onto the tube.

If the fittings are bench assembled, the gripping action can be determined by rotating the tube by hand as the nut is drawn down. When the tube can no longer be rotated by hand, the sleeve has gripped onto the tube. When this happens, tighten the nut by turning it one full turn. This may vary slightly with different tubing materials, but for general practice, it is a good rule to follow.

6. Configurations of JIC Fittings:​

Commonly used connection types consist of: JIC/BSPP Male Connector, JIC/ NPT Male connector, JIC Union, JIC/NPT Swivel Male Connector , JIC/BSPP Swivel Male Connector.

7. Differences between JIC and NPT:​

Based on the system design, several connection types or threads are available for connecting tubes, hoses, and pipes. For instance, British Standard Parallel Pipe (BSPP), National Pipe Thread (NPT), Joint Industry Council (JIC), ASME, and others.  

JIC has a 37-degree flare for attaching to hoses or flared tubes. Forging is a technique used in the production of tubes. Metal is molded into desired shapes by compressing pressures during forging. Tube flaring is a cold working forging technique for metals. JIC threads are developed particularly for use in high-pressure systems.

NPT threads are among the earliest types of connection threads. They are intended for use in low-pressure systems. They are often used in hydraulic systems to connect ports, tubes, and pipes. The following table shows the differences between JIC and NPT:
Features
37° Flare (JIC)
National Pipe Thread (NPT)
Working Pressure
Very Good
​Good
Vibration Resistance
​​Good
Poor
Ease of Installation
​Good
​Good
Seal Reliability
​Good
Poor
Temperature
​Excellent
​​Excellent
Reusability
​Good
Poor
 Connection tube and JIC fitting
Connection tube and JIC fitting

8. Installation:​

There are four steps for JIC fittings installation as below:
  • STEP 1: Examine the fitting and sealing surfaces for contamination or damage. After that, cut the tube to the required length and flare it to 37 degrees.
  • STEP 2: Apply a lubricant, such as hydraulic fluid, to the entire surface of the flare and threads.
  • STEP 3: Insert nut and sleeve in the tube end connection . Before hand tightening, make sure the components are properly positioned. Then, turn the flare nut to access the sealing surface.
  • STEP 4: ​Double-check the tightening torque figures to ensure they are correct.​
​
For more information about JIC Fittings, please refer to en.wikipedia.org/wiki/JIC_fitting.

9. JIC Fittings Pressure Ratings:​

Working pressure rates are based on SAE J514 standards and are capable of 4 to 1 minimum burst pressure ratings.​
Tube OD (Metric)
Tube OD (Inch)​
SAE J514
1), in psig
SAE J514
2), in psig
SAE J514
​3), in psig
6
1/4
5000
5000
​4500
8
5/16
5000
5000
4000
10
3/8
5000
4000
4000
12
1/2
4500
3000
4000
16
5/8
3500
3000
3000
20
3/4
3500
2500
3000
25
1
3000
2000
2500
32
1 1/4
2500
1150
2000
38
1 1/2
2000
1000
1500
50
2
1500
1000
1125
***Note:
SAE J514 1), in psig is for Unions and bulkheads
SAE J514 2), in psig is for Fittings with pipe threads
SAE J514 3), in psig is for Fittings with female swivel

10. JIC Fittings Assembly Torque:​

For JIC flare fittings, it is important to assemble the fittings within the designed torque values to be able to achieve the designed pressure as per SAE J514 standards. Under torque and over torque will result in design pressure loss. Therefore, please refer to the table below for JIC's torque assembly pressure.
Tube OD (Metric)
Tube OD (Inch)
Assembly Torque (Nm)
Over Torque (Nm)
6
1/4
15-16
24
8
5/16
19-21
31
10
3/8
24-28
42
12
1/2
49-53
80
16
5/8
77-85
114
20
3/4
107-119
160
25
1
147-154
214
32
1 1/4
172-181
271
38
1 1/2
215-226
339
50
2
332-350
497
Note: Over Torque causes deformation of the 37 degrees cone of the male end. Excessive deformation of the cone results in loss of clamping force and pressure loss.

11. JIC Fittings Temperature Rating:​
Body Material Temperature Rating​

​JIC Fittings temperature ratings vary in accordance to the body material as per below:
Stainless Steel
 -60°C to 200°C
Carbon Steel
 -40°C to 150°C
Brass
-45°C to 175°C
Elastomer's Temperature Rating

​When combing seal material, the temperature rating of seal may become the limiting factor on the fitting's temperature rating. Kindly refer to the temperature rating below:
​NBR
-23°C to 120°C (Default Option)
Viton
-20°C to 180°C

Product Catalogue in pdf:
HSME JIC Fittings
HSME JIC Fittings
HSME JIC Fittings
JIC Fittings
Product Literature in pdf:
JIC Fittings Literature
JIC Fittings

​​To go back to High Pressure Fittings page
High Pressure Fittings

FAQ Of JIC Fittings

What is the size range of JIC fittings?​
​The size range of JIC fittings is from 1/4 inches to 1 1/2 inches.
​What is the working pressure for JIC fittings?
​JIC fittings can withstand working pressure up to 430 bar.
​What components are included in a complete set of JIC fittings?
​A full collection of JIC fittings consists of a sleeve, nut, and body, with a 37-degree flared seating surface on the body.
What is the function of JIC fittings?
JIC fittings without a sleeve and nut are typically used as a hose adapter on a hose assembly installation to attach to a female swivel end.
​How do I know my JIC fitting size?
​You can look at the dash size number, which is widely used in the US to make ordering components easier. It is written as the
numerator of a fraction with a denominator of 16 always.
Is JIC or NPT better?
​JIC. JIC has better working pressure, vibration resistance, seal reliability and reusability rather than NPT.
Clients who viewed this product also:
Low Pressure Threaded Fittings
Class 150# Fittings
Stainless Steel Tubes Picture
Stainless Steel Tubes
Quick Connect Fittings
Quick Connect Fittings
High Pressure Ball Valves
High Pressure Ball Valves
Company
About Us
​
ISO Certification
​
Testimonials
​
News
​Contact Us
​Quick Links
Brands
Products
MyRewards
​Catalogues
​
Literature
​
FAQ
Legal Information
Terms & Conditions
​
Privacy Policy
Subscribe to Chuan Kok Newsletter
 © 2023 Chuan Kok Hardware & Machinery Pte Ltd. All rights reserved.
  • About
    • Core Values
    • ISO Certification
    • Testimonials
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA-Zentgraf
    • Eaton Walterscheid
    • AF Hydro
    • Oleo-Tecnica
    • KPL Industry
    • Bothwell
    • Inteva
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Tubes
      • Copper Coils
      • Walform Tubes
    • Clamps >
      • Stauff Clamps
      • Tube Clamps
      • Stauff ACT Clamps
      • Rubber Insert Clamps
    • Flanges >
      • SAE Flange
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • High Pressure Check Valves
      • Needle Valves
      • SAE Flange Ball Valves
      • SAE Flange Check Valves
      • ISO6164 Ball Valve
    • High Pressure Fittings >
      • Hydraulic Compression Fittings
      • Forged Pipe Fittings
      • JIC Fittings
      • Twin / Double Ferrule Fittings
      • Quick Connect Couplings
      • Adapter Fittings
    • Low Pressure Valves >
      • Low Pressure Ball Valves >
        • 1 PC Ball Valve
        • 2 PC Ball Valve
        • 3 PC Ball Valve
        • 3 Way L-Port Ball Valve
        • 3 Way T-Port Ball Valve
        • Brass Ball Valve
        • Brass Mini Ball Valve
        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Flange End Swing Check Valve
        • JIS 10K SS316 Flange End Swing Check Valve
        • ANSI 150# Cast Steel Flange End Swing Check Valve
        • Threaded End SS316 Swing Check Valve
        • Threaded End Brass Swing Check Valve
      • Single Plate Check Valve
      • Dual Plate Check Valve
      • Spring Check Valve
      • Y-strainers >
        • ANSI 150# SS316 Flange End Y-Strainers
        • JIS 10K SS316 Flange End Y-Strainers
        • Threaded End SS316 Y-Strainers
        • ANSI 150# Cast Steel Flange End Y-Strainers
        • JIS 10K Cast Steel Flange End Y-Strainers
      • Gate Valves >
        • ANSI 150# SS316 Flange End Gate Valve
        • JIS 10K SS316 Flange End Gate Valve
        • Threaded End SS316 Gate Valve 200PSI
        • Threaded End SS316 Gate Valve 800PSI
        • ANSI 150# Cast Iron Flange End Gate Valve
        • JIS 10K Cast Iron Flange End Gate Valve
        • ANSI 150# Cast Steel Flange End Gate Valve
        • ANSI 150# Forged Steel Flange End Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Flange End Globe Valve
        • JIS 10K SS316 Flange End Globe Valve
        • Threaded End SS316 Globe Valve 200PSI
        • Threaded End SS316 Globe Valve 800PSI
        • ANSI 150# Cast Iron Flange End Globe Valve
        • JIS 10K Cast Iron Flange End Globe Valve
        • ANSI 150# Cast Steel Flange End Globe Valve
        • ANSI 150# Forged Steel Flange End Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Wafer Type Butterfly Valve
        • ANSI 150# Cast Iron Lug Type Butterfly Valve
    • Low Pressure Fittings >
      • Class 150# Fittings
      • Camlock Fittings
    • Accessories >
      • Stauff Pressure Gauges
      • Stauff Test Couplings
      • Stauff Tube Cleaning Systems
      • Stauff Level Gauges
      • Stauff Filler Breathers
      • Eaton Walterscheid Walform Machine
      • Eaton Walterscheid Anti Bloc Fett/Grease
      • Eaton Walterscheid Walform Seal
      • GS Hydro Retain Ring
      • GS Hydro Bonded Seals
      • O-Rings
      • Dowty Seals
  • MyRewards
    • BENEFITS
    • MyFAQ
    • Sign-up MyRewards
  • Catalogues
    • Pipes and Tubes
    • Clamps
    • Flanges
    • High Pressure Valves
    • High Pressure Fittings
    • Low Pressure Valves
    • Low Pressure Fittings
    • Accessories
  • News
  • Contact