Hydraulic O-Ring Face Seal Fittings

The best leak protection available today. The male fitting has a straight thread and O-ring in the face. The female has a straight thread and a machined flat face. The seal takes places by compressing the O-ring onto the flat face of the female, similar to a split flange fitting. The threads hold the connection mechanically.

Inch Size	Dash Size	Nominal Thread Size	Male Thread OD	Female Thread ID
1/4	-04	9/16-18	9/16" (.56)	17/13" (.51)
3/8	-06	11/16-16	11/16" (.69)	5/8" (.63)
1/2	-08	13/16-16	13/16" (.82)	3/4" (.75)
5/8	-10	1-14	1" (1.00)	15/16" (.93)
3/4	-12	1 3/16-12	1 3/16" (1.19)	1 1/8" (1.11)
1	-16	1 7/16-12	1 7/16" (1.44)	1 3/8" (1.36)
1 1/4	-20	1 11/16-12	1 11/16" (1.69)	1 5/8" (1.61)
1 1/2	-24	2-12	2" (2.00)	1 15/16" (1.92)

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

O-Ring Seal Fittings are available in our On-Line Store

Common O-Ring Face Fittings and Adapters
Image	Description	Part # / SKU
	O-Ring Face Seal Nut	Aeroquip # FC2326-xS Parker # x-BL-S
	Straight Thread Connector O-Ring Face Seal / O-Ring Boss	Aeroquip # FF1852T-xxS Parker # x-x-F50LO-S
	Long Straight Thread Connector O-Ring Face Seal / O-Ring Boss	Aeroquip # FF2211T-xxS Parker # x-x-FF50LO-S
	Straight Thread Swivel Connector ORS Female Swivel / SAE O-Ring Boss	Aeroquip # FF2130T-xxS Parker # x-x-F650L-S
	Straight Thread Elbow O-Ring Face Seal / SAE O-Ring Boss (adj.)	Aeroquip # FF1868T-xxS Parker # x-x-C50LO-S
	Straight Thread Elbow O-Ring Face Seal / SAE O-Ring Boss (adj.)	Aeroquip # FF2227T-xxS Parker # x-x-CC50LO-S
	45° Straight Thread Elbow O-Ring Face Seal / SAE O-Ring Boss (adj.)	Aeroquip # FF2068T-xxS Parker # x-x-V50LO-S
	Straight Thread Branch Tee O-Ring Face Seal / SAE O-Ring Boss (adj.)	Aeroquip # FF1861T-xxS Parker # x-S50LO-S
	Straight Thread Run Tee O-Ring Face Seal / SAE O-Ring Boss (adj.)	Aeroquip # FF1865T-xxS Parker # x-R50LO-S
	Male Pipe Connector O-Ring Face Seal / Male NPT.	Aeroquip # FF2031T-xxS Parker # x-x-FLO-S
	45° Male Pipe Connector O-Ring Face Seal / Male NPT.	Aeroquip # FF2093T-xxS Parker # x-x-VLO-S
	90° Male Pipe Connector O-Ring Face Seal / Male NPT.	Aeroquip # FF2032T-xxS Parker # x-x-CLO-S
	Male Pipe Branch Tee O-Ring Face Seal / Male NPT.	Aeroquip # FF2001T-xxS Parker # x-x-SLO-S
	O-Ring Face Swivel Adapter O-Ring Face Seal Swivel / Male 37° Flare (JIC)	Aeroquip # FF2209T-xxS Parker # x-XHL6-S
	O-Ring Face Seal Adapter O-Ring Face Seal / Male 37° Flare (JIC)	Aeroquip # FF2313T-xxS Parker # x-XHLO-S
	O-Ring Face Seal Union O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2000T-xxS Parker # x-HMLO-S
	O-Ring Face Seal Reducer O-Ring Face Seal / O-Ring Face Seal Swivel	Aeroquip # FF2281T-xxS Parker # x-x-TRLON-S
	Bulkhead Union O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF1994T-xxS Parker # x-WLO-S
	45° Swivel Nut Elbow Female O-Ring Face Seal Swivel / O-Ring Face Seal	Aeroquip # FF2133T-xxS Parker # x-V6LO-S
	45° Bulkhead Union Elbow O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2144T-xxS Parker # x-WNLO-S
	90° Swivel Nut Elbow Female O-Ring Face Seal Swivel / O-Ring Face Seal	Aeroquip # FF2098T-xxS Parker # x-C6LO-S
	90° Union Elbow O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2035T-x-xS Parker # x-CLO-S
	90° Bulkhead Union Elbow O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2030T-xxS Parker # x-WEMLO-S
	O-Ring Face Seal Union Tee O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF1898T-xxS Parker # x-JMLO-S
	Bulkhead Run Tee O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2174T-xxS Parker # x-WJJLO-S
	O-Ring Face Seal Branch Tee O-Ring Face Seal / Female O-Ring Face Seal Swivel	Aeroquip # FF1857T-xxS Parker # x-S6LO-S
	O-Ring Face Seal Run Tee O-Ring Face Seal / Female O-Ring Face Seal Swivel	Aeroquip # FF2114T-xxS Parker # x-R6LO-S
	Bulkhead Union Tee O-Ring Face Seal / O-Ring Face Seal	Aeroquip # FF2033T-xxS Parker # x-WJLO-S
	O-Ring Face Seal Plug	Aeroquip # FF9767-xS Parker # x-PNLO-S
	O-Ring Face Seal Cap	Aeroquip # FF9863-xS Parker # x-FNL-S