b'STEEL O-RING FACE SEAL ADAPTERS(BUNA-N O-RING STANDARD)A 90 ELBOW 45 ELBOW BUNA-NMale O-Ring O-RINGFace Seal To O-Ring Face Face SealFemale O-Ring Seal To MaleFace Seal O-Ring Boss PART No. ORFS DIA.S3931R-4 9/16 - 18 .301S3931R-6 11/16 - 16 .364S3931R-8 13/16 - 16 .489Male Female PART No. ORFS O-RingS3931R-10 1 - 14 .614PART No. ORFS ORFS S3974-4 9/16 - 18 7/16 - 20 S3931R-12 1-3/16 - 12 .739S3947-4 9/16 - 18 9/16 - 18 S3974-6 11/16 - 16 9/16 - 18 S3931R-16 1-7/16 - 12 .926S3947-6 11/16 - 16 11/16 - 16 S3974-8 13/16 - 16 3/4 - 16 S3931R-20 1-11/16 - 12 1.176S3947-8 13/16 - 16 13/16 - 16 S3974-10 1 - 14 7/8 - 14S3947-10 1 - 14 1 - 14S3947-12 1-3/16 - 12 1-3/16 - 12S3947-16 1-7/16 - 12 1-7/16 - 12S3947-20 1-11/16 - 12 1-11/16 - 12LOCK NUTPART No. ORFS90 ELBOW S3931N-4 9/16 - 18Male O-Ring Face S3931N-6 11/16 - 16S3931N-8 13/16 - 16Seal To Male S3931N-10 1 - 14O-Ring Boss S3931N-12 1-3/16 - 12S3931N-16 1-7/16 - 12Male Male TEEPART No. ORFS O-RingMale To Female Steel O-Ring Face Seal Fittings (ORFS):S3969-4 9/16 - 18 7/16 - 20 To Male O-Ring Steel O-ring face seal adapter fittings use aS3969-46 9/16 - 18 9/16 - 18S3969-6 11/16 - 16 9/16 - 18 Face Seal straight thread and have a machined groove inS3969-68 11/16 - 16 3/4 - 16S3969-8 13/16 - 16 3/4 - 16 the face of the male fitting to accept an O-ringS3969-86 13/16 - 16 9/16 - 18S3969-810 13/16 - 16 7/8 - 14 Male Female (of either Buna N or Viton material). This O-S3969-812 13/16 - 16 1-1/16 - 12 PART No. ORFS ORFS ring is compressed against the flat face of theS3969-10 1 - 14 7/8 - 14 S3951F-4 9/16 - 18 9/16 - 18S3969-108 1 - 14 3/4 - 16 S3951F-6 11/16 - 16 11/16 - 16 female fitting for a leak proof connection, andS3969-12 1-3/16 - 12 1-1/16 - 12 S3951F-8 13/16 - 16 13/16 - 16S3969-1210 1-3/16 - 12 7/8 - 14 S3951F-10 1 - 14 1 - 14 offers excellent leak protection at highS3969-16 1-7/16 - 12 1-5/16 - 12 S3951F-12 1-3/16 - 12 1-3/16 - 12S3969-20 1-11/16 - 12 1-5/8 - 12 S3951F-16 1-7/16 - 12 1-7/16 - 12 pressures.STEEL MERCHANT PIPE FITTINGS (Weldable)COUPLINGBUSHING COUPLING (Half Height)PART No. Pipe PART No. PipeBI-110MC-CB 3/8 to 1/4 PART No. PipeBI-103MC-A 1/8 BI-103HMC-A 1/8BI-110MC-DB 1/2 to 1/4 BI-103MC-B 1/4BI-110MC-DC 1/2 to 3/8 BI-103HMC-B 1/4BI-103MC-C 3/8 BI-103HMC-C 3/8BI-110MC-EB 3/4 to 1/4 BI-103MC-C-3000 (psi) 3/8BI-110MC-EC 3/4 to 3/8 BI-103HMC-D 1/2BI-103MC-D 1/2 BI-103HMC-E 3/4BI-110MC-ED 3/4 to 1/2 BI-103MC-E 3/4BI-103HMC-H 1BI-103MC-E-3000 (psi) 3/4 BI-103HMC-J 1-1/4BI-103MC-H 1 BI-103HMC-K 1-1/2PLUG BI-103MC-J 1-1/4BI-103HMC-M 2(Square Head) BI-103MC-K 1-1/2BI-103MC-M 2BI-103MC-N 2-1/2PART No. Pipe BI-103MC-P 3BI-109MC-A 1/8 BI-103MC-S 4BI-109MC-B 1/4BI-109MC-C 3/8BI-109MC-D 1/2BI-109MC-E 3/4BI-109MC-H 162'