| EXTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| EXTERNAL THREAD DIRECTION | RIGHT-HAND |
| EXTERNAL THREAD SIZE | 3/8-18 |
| INTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| INTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL THREAD SIZE | 1/8-27 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A216 ASSN STD 2ND MATERIAL RESPONSE |
| MATERIAL | IRON MALLEABLE OR STEEL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND A STYLE AND 1 CLASS |
| WORKING PRESSURE AND SERVICE TYPE | 125.0 POUNDS PER SQUARE INCH NOMINAL AIR AND 150.0 POUNDS PER SQUARE INCH NOMINAL STEAM |
| STYLE DESIGNATOR | OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL) |
| SURFACE TREATMENT | OXIDE OR ZINC |