Specifications & Stuff
Standards to live by
Below are some of the specifications and standards that are used in our products. Click for more details.
SAE J514C 4-Bolt Flange SpecificationMale O-Ring Boss (ORB) SpecificationFemale O-Ring Boss (ORB) SpecificationNational Pipe Thread SpecificationJoint Industry Council (JIC) SpecificationBritish Standard Pipe Parallel (BSPP) SpecificationA.S.A. Pipe Schedules
Female O-Ring Boss (ORB) Specification


Nom. Size | Dash No. | UNF Thread | Y | O | U +.005 -.000 | Pilot Drill | K +.015 -.000 | S | J | P | D | Z ±1° |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/8 | -02 | 5/16”-24 | 0.672 | 0.438 | 0.358 | I | 0.074 | 0.062 | 0.390 | 0.468 | 0.062 | 12 |
3/16 | -03 | 3/8”-24 | 0.750 | 0.500 | 0.421 | Q | 0.074 | 0.062 | 0.390 | 0.468 | 0.125 | 12 |
1/4 | -04 | 7/16”-20 | 0.828 | 0.563 | 0.487 | 25/64 | 0.093 | 0.062 | 0.454 | 0.547 | 0.172 | 12 |
5/16 | -05 | 1/2”-20 | 0.906 | 0.625 | 0.550 | 29/64 | 0.093 | 0.062 | 0.454 | 0.547 | 0.234 | 12 |
3/8 | -06 | 9/16”-18 | 0.969 | 0.688 | 0.616 | 33/64 | 0.097 | 0.062 | 0.500 | 0.609 | 0.297 | 12 |
1/2 | -08 | 3/4”-16 | 1.188 | 0.875 | 0.811 | 11/16 | 0.10 | 0.094 | 0.562 | 0.688 | 0.391 | 15 |
5/8 | -10 | 7/8”-14 | 1.344 | 1.000 | 0.942 | 13/16 | 0.100 | 0.094 | 0.656 | 0.781 | 0.484 | 15 |
3/4 | -12 | 1-1/16”-12 | 1.625 | 1.250 | 1.148 | 63/64 | 0.130 | 0.094 | 0.750 | 0.906 | 0.609 | 15 |
7/8 | -14 | 1-3/16”-12 | 1.765 | 1.375 | 1.273 | 1-3/32 | 0.130 | 0.094 | 0.750 | 0.906 | 0.719 | 15 |
1 | -16 | 1-5/16”-12 | 1.910 | 1.500 | 1.398 | 1-15/64 | 0.130 | 0.125 | 0.750 | 0.906 | 0.844 | 15 |
1-1/4 | -20 | 1-5/8”-12 | 2.270 | 1.875 | 1.713 | 1-17/32 | 0.132 | 0.125 | 0.750 | 0.906 | 1.078 | 15 |
1-1/2 | -24 | 1-7/8”-12 | 2.560 | 1.125 | 1.962 | 1-51/64 | 0.132 | 0.125 | 0.750 | 0.906 | 1.312 | 15 |
2 | -32 | 2-1/2”-12 | 3.480 | 2.750 | 2.587 | 2-27/64 | 0.132 | 0.125 | 0.750 | 0.906 | 1.781 | 15 |