b'STEEL O-RING FACE SEAL ADAPTERS(BUNA-N O-RING STANDARD)Steel O-Ring Face Seal Lock NutFace Seal Fittings (ORFS): O-RingSteel O-ring face seal adapter fittingsuse a straight thread and have amachined groove in the face of the PART No. ORFS DIA.S3931R-4 9/16 - 18 .301 PART No. ORFSmale fitting to accept an O-ring S3931R-6 11/16 - 16 .364 S3931N-4 9/16 - 18(of either Buna N or Viton material). S3931R-8 13/16 - 16 .489 S3931N-6 11/16 - 16This O-ring is compressed against the S3931R-10 1 - 14 .614 S3931N-8 13/16 - 16S3931R-12 1-3/16 - 12 .739 S3931N-10 1 - 14flat face of the female fitting for a leak S3931R-16 1-7/16 - 12 .926 S3931N-12 1-3/16 - 12proof connection. S3931R-20 1-11/16 - 12 1.176 S3931N-16 1-7/16 - 12STEEL FLARELESS ADAPTERSConnector 90 ElbowTube Sleeve Tube to Tube toS G N I T T I F Female Pipe TubePART No. TubeS6760-4 1/4S6760-6 3/8S6760-8 1/2 PART No. TubeS6760-10 5/8 PART No. Tube Pipe S6765-41/4S6760-12 3/4 S6766-4A1/4 1/8 S6765-63/8S6760-16 1 S6766-4B1/4 1/4 S6765-81/2S6766-6B3/8 1/4S6766-6C3/8 3/8S6766-8C1/2 3/8S6766-10D 5/8 1/2Tube Nut S6766-12E 3/4 3/4 90 ElbowS6766-16H 1 1 Tube toMale PipePART No. TubeS6761-4 1/4 PART No. Tube PipeS6761-6 3/8 S6769-4A1/4 1/8S6761-8 1/2 Connector S6769-4B1/4 1/4S6761-10 5/8S6761-12 3/4 Tube to S6769-6B 3/8 1/4S6769-6C 3/8 3/8S6761-16 1 Male Pipe S6769-8C 1/2 3/8S6769-8D 1/2 1/2S6769-10D 5/8 1/2Union S6769-12E 3/4 3/4Tube toTube TeePART No. Tube Pipe TubeS6768-4A 1/4 1/8S6768-4B 1/4 1/4PART No. Tube S6768-6B 3/8 1/4S6762-3 3/16 S6768-6C 3/8 3/8S6762-4 1/4 S6768-8C 1/2 3/8S6762-6 3/8 S6768-8D1/2 1/2 PART No. TubeS6762-8 1/2 S6768-10D5/8 1/2 S6764-41/4 S6762-10 5/8 S6768-12D3/4 1/2 S6764-63/8 S6762-12 3/4 S6768-12E3/4 3/4 S6764-81/2S6762-16 1 S6768-16H 1 1 S6764-10 5/896'