Hy-Lok USA, Inc. 37° flare fittings perform well in severe applications where vibration, high pressure, and thermal shock exist.
The flare fitting sleeve insures tube alignment with the fitting body axis and minimizes mechanical strain on the tube.
Flare fitting design allows for repeated disassembly and re-assembly with no need to replace any components. A wide range of configurations are available such as straight connectors, elbows, union, tees, and crosses as well as unique special adapters. Standard flare fitting materials include brass, carbon steel, and stainless steel.
Defined by MIL-F-18866 and SAE J514 standards, these flare fittings have been machined to have a 37° flare seating surface. These fittings are most commonly used in fluid power and fuel delivery applications, especially those using high pressure. These JIC fittings are identical, in a dimensional design, to Aeronautical-Navy fittings, but they have been manufactured to be cost effective and to tolerances that are not as high or specific.
In the fluid power industry, these fittings are used in a test-point and diagnostic setting. There are instances with a three-way coupling can offer a port inline of circuit that allows the user to connect diagnostic equipment or measuring device so pressure readings and system diagnostics can be performed.
37° Flare Fitting Benefits
- — Assembly performs extremely well even under severe vibration and thermal shocks
- — Upon tightening, the sleeve ensures tube alignment with fitting axis, reduces mechanical strain on tube and compensates for vibration
- — Fitting can be equally coupled to metric or fractional tubes
- — Tube does not undergo distortion, remains constant and fluid pressure losses are negligible
- — The system leak free integrity remains after disassembly and reassembly
- — Individual replacement of any component
Hy-Lok’s flare fittings are engineered to save the user money and time. They are economically priced and provide excellent service as well as longevity. These fittings are designed to meet all system requirements and safety standards. Providing exceptional results and quality service, these 37°flare fittings are favored by many industries and consistently exceed the user’s expectations.
For more information, find a Hy-Lok distributor in your area. We will assist you in finding the fittings that best suit your needs.
FU – Union
FL – Union Elbow
FT – Union Tee
FBU – Bulkhead Union
FBUW – Weld Bulkhead Union
FBFC – Female Bulkhead Union
FMC – Male Connector
FLM – Male Elbow
FRTM – Male Run Tee
FFC – Female Connector
FLF – Female Elbow
FRTF – Female Run Tee
FOMR – O-Ring Seal Male Connector (UNF)
FOM – O-Ring Seal Male Connector (UNF)
FOLM – O-Ring Seal Male Elbow (UNF)
FOBTM – O-Ring Seal Branch Tee (UNF)
FORTM – O-Ring Seal Run Tee (UNF)
FSFMC – Swivel Connector
FSFFC – Swivel Female Connector
FSL – Swivel Elbow
FSRT – Swivel Run Tee
FSBT – Swivel Branch Tee
FN – Nut
FS – Sleeve
FPC – Cap
FTER – Tube End Reducer
FLN – Bulkhead Lock Nut
FBL – Bulkhead Union Elbow
FBTM – Branch Tree
FLMB – 45° Male Elbow
FBTF – Female Branch Tree
FSFOM – O-Ring Seal
Swivel Connector (UNF)
FP – Plug
45° Male Elbow (UNF)