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 37° Flare (JIC) Hydraulic Fittings (SAE J514)

Jic Thread Drawing

This Connection is very common in fluid power systems. Both the male and female halves of the connections have 37° seats. The seal takes place by establishing a line contact between the male flare and the female cone seat. The threads hold the connection mechanically. CAUTION: in the -02, -03, -04, -05, -08, and -10 sizes, the threads of the SAE 45° flare and the SAE 37° flare are the same. However, the sealing surface angles are not the same.

Inch Size
Dash Size
Nominal Thread Size
Male Thread OD
Female Thread ID
1/8 -02 5/16-24 5/16" (.31) 9/32" (.27)
3/16 -03 3/8-24 3/8" (.38) 11/32" (.34)
1/4 -04 7/16-20 7/16" (.44) 13/32" (.39)
5/16 -05 1/2-20 1/2" (.50) 15/32" (.45)
3/8 -06 9/16-18 9/16" (.56) 17/32" (.51)
1/2 -08 3/4-16 3/4" (.75) 11/16" (.69)
5/8 -10 7/8-14 7/8" (.88) 13/16" (.81)
3/4 -12 1 1/16-12 1 1/16" (1.06) 1" (.98)
7/8 -14 1 3/16-12 1 3/16" (1.19) 1 1/8" (1.10)
1 -16 1 5/16-12 1 5/16" (1.31) 1 1/4" (1.23)
1 1/4 -20 1 5/8-12 1 5/8" (1.63) 1 9/16 (1.54)
1 1/2 -24 1 7/8-12 1 7/8" (1.88) 1 13/16" (1.79)
2 -32 2 1/2-12 2 1/2-12" (2.50) 2 7/16" (2.42)
eaton aeroquip fittings

We are an authorized distributor of Eaton Aeroquip products. Other manufacture's part numbers shown for reference.

JIC Fittings & Adapters are available in our On-Line Store

Common 37° Flare Fittings (JIC)
Image Description Part # / SKU
37 degree male flare connector External Pipe / 37° Flare (JIC)
Aeroquip # 2021-x-xS
Parker # x-x-FTX-S
37 Degree flare straight npt bulhead fitting External Pipe / 37° Flare Bulkhead (JIC) Aeroquip # 2240-x-xS
Parker # x-x-WFTX-S
Female Bulkhead Connector Internal Pipe / 37° Flare Bulkhead (JIC) Aeroquip # 2239-x-xS
Parker # x-x-WGTX-S
JIC Swivel Connector External Pipe / 37° Flare Swivel (JIC) Aeroquip # 2018-x-x-s
Parker # x-x-F6X-S
JIC Swivel Connector Internal Pipe / 37° Flare Swivel (JIC) Aeroquip # 2242-x-xS
Parker # x-x-G6X-S
JIC Female Connector Internal Pipe / 37° Flare (JIC) Aeroquip # 2022-x-xS
Parker # x-x-GTX-S
JIC 45 Degree Elbow External Pipe / 37° Flare (JIC) 45° Elbow Aeroquip # 2023-x-xS
Parker # x-x-VTX-S
90 degree JIC Elbow External Pipe / 37° Flare (JIC) 90° Elbow Aeroquip # 2024-x-xS
Parker # x-x-CTX-S
Jic Long Elbow External Pipe / 37° Flare (JIC) 90° Long Elbow Aeroquip # 202411-x-xS
Parker # x-x-CCTX-S
JIC Long Elbow External Pipe / 37° Flare (JIC) 90° Extra Long Elbow Aeroquip # 202413-x-xS
Parker # x-x-CCCTX-S
JIC Female Swivel Elbow External Pipe / 37° Flare Swivel (JIC) 90° Elbow Aeroquip # 2250-x-xS
Parker # x-x-X6EF-S
JIC Male Pipe Swivel Elbow External Pipe Swivel / 37° Flare (JIC) 90° Elbow Aeroquip # 2249-x-xS
Parker #
Jic Female Pipe Swivel Internal Pipe / 37° Flare Swivel (JIC) 90° Elbow Aeroquip # 2244-x-xS
Parker #
Jic Female Elbow Internal Pipe / 37° Flare (JIC) 90° Elbow  Aeroquip # 2025-x-xS
Parker # x-x-DTX-S
Jic Run Tee External Pipe / 37° Flare (JIC) Run Tee Aeroquip # 2028-x-x-S
Parker # x-x-RTX-S
Jic Branch Tee External Pipe / 37° Flare (JIC) Branch Tee Aeroquip # 2030-x-xS
Parker # x-x-STX-S
Jic Female Branch Tee Internal Pipe / 37° Flare (JIC) Branch Tee Aeroquip # 2031-x-xS
Parker # x-x-OTX-S
37 degree jic union  37° Flare / 37° Flare (JIC) Union Aeroquip # 2027-x-x-S
Parker # x-HTX-S
37 Degree Flare Bulkhead Union 37° Flare / 37° Flare (JIC) Bulkhead Union Aeroquip # 2041-x-xS
Parker # x-WTX-S
37 degree JIC Plug 37° Flare (JIC) Plug Aeroquip # 900599-xS
Parker # x-PNTX-S
37 Degree Flare JIC Cap 37° Flare (JIC) Cap Aeroquip # 210292-xS
Parker # x-FNTX-S
37 Degree Flare Expander Adapter 37° Flare (JIC) / 37° Flare (JIC) Expander / Adapter Aeroquip # 2215-x-xS
Parker # x-x-TRTXN-S
37 Degree JIC Reducer 37° Flare (JIC) / 37° Flare (JIC) Reducer (2 Piece) Aeroquip # 221501-x-xS
Parker # x-x-TRTXN-S
37 Degree Flare JIc Bulkhead 45 degree elbow 37° Flare (JIC) / 37° Flare (JIC) 45° Bulkhead Elbow Aeroquip # 2042-x-xS
Parker # x-x-WNTX-S
37 Degree Flare Jic 45 swivel Elbow 37° Flare Swivel (JIC) / 37° Flare (JIC) 45° Elbow Aeroquip # 2070-x-xS
Parker # x-x-V6X-S
37 Degree Flare Union Elbow 37° Flare (JIC) / 37° Flare (JIC) 90° Union Elbow Aeroquip # 2039-x-xS
Parker # x-x-ETX-S
37 Degree Flare Bulkhead Elbow 37° Flare (JIC) / 37° Flare (JIC) 90° Bulkhead Union Elbow Aeroquip # 2043-x-xS
Parker # x-x-WETX-S
37 degree Flare (JIC) 90 degree swivel elbow 37° Flare (JIC) Swivel / 37° Flare (JIC) 90° Elbow Aeroquip # 2071-x-xS
Parker # x-x-C6X-S
37 degree flare JIC Tube Elbow 37° Flare (JIC) Swivel / 37° Flare (JIC) 90° Elbow Aeroquip # 500454-xS
Parker #
37 degree flare jic union tee 37° Flare (JIC)  / 37° Flare (JIC) / 37° Flare (JIC) Union Tee Aeroquip # 2033-x-xS
Parker # x-x-JTX-S
37 degree flare jic bulkhead union tee 37° Flare (JIC)  / 37° Flare (JIC) / 37° Flare (JIC) Bulkhead Union Tee Aeroquip # 203002-x-xS
Parker # x-WJTX-S
37 degree flare jic bulkhead run tee 37° Flare (JIC)  / 37° Flare (JIC) / 37° Flare (JIC) Bulkhead Run Tee Aeroquip # 203008-x-xS
Parker # x-WJJTX-S
37 degree flare jic swivel branch tee 37° Flare (JIC) Swivel / 37° Flare (JIC) / 37° Flare (JIC) Branch Tee Aeroquip # 203101-x-xS
Parker # x-S6X-S
37 degree flare jic swivel run tee 37° Flare (JIC) Swivel / 37° Flare (JIC) / 37° Flare (JIC) Run Tee Aeroquip # 203102-xS
Parker # x-R6X-S
37 degree flare jic cross 37° Flare (JIC)  Cross Aeroquip # 2020-x-xS
Parker # x-KTX-S
Bulkhead Lock Nut Bulkhead Lock Nut Aeroquip # 210212-xS
Parker # x-WLN-S
37 degree flare jic o-ring boss connector SAE O-Ring Boss / 37° Flare (JIC)  Aeroquip # 202702-x-xS
Parker # x-x-F50X-S
37 degree flare swivel o-ring boss SAE O-Ring Boss / 37° Flare (JIC) Swivel Aeroquip # 2266-x-xS
Parker # x-x-F650X-S
37 degree flare o-ring boss 45 elbow SAE O-Ring Boss (adj.) / 37° Flare (JIC) 45° Elbow Aeroquip # 2061-x-xS
Parker # x-x-V50X-S
37 degree flare sae o-ring boss long elbow SAE O-Ring Boss (adj.) / 37° Flare (JIC) 90° Long Elbow Aeroquip # 206209-x-xS
Parker # x-x-CC50X-S
37 degree flare jic sae o-ring elbow SAE O-Ring Boss (adj.) / 37° Flare (JIC) 90° Long Elbow Aeroquip # 2062-x-xS
Parker # x-x-C50X-S
37 degree flare jic o-ring boss run tee SAE O-Ring Boss (adj.) / 37° Flare (JIC) Run Tee Aeroquip # 203005-x-xS
Parker # x-x-R50X-S
37 degree flare sae o-ring branch tee SAE O-Ring Boss (adj.) / 37° Flare (JIC) Branch Tee Aeroquip # 203003-x-xS
Parker # x-x-S50X-S

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