| EXTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| EXTERNAL THREAD DIRECTION | RIGHT-HAND |
| EXTERNAL THREAD SIZE | 1/2-14 |
| INTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| INTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL THREAD SIZE | 3/8-18 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-681, CLASS 65-35 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-681, CLASS 70-36 FED SPEC 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL UNS J03001 OR STEEL UNS J03501 |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND D STYLE |
| STYLE DESIGNATOR | OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL) |
| SURFACE TREATMENT | ZINC OR OXIDE |
| WORKING PRESSURE AND SERVICE TYPE | 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL STEAM AND 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS |