| EXTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| EXTERNAL THREAD DIRECTION | RIGHT-HAND |
| EXTERNAL THREAD SIZE | 1-1/2-11-1/2 |
| INTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| INTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL THREAD SIZE | 1/2-14 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-I-666, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE AND QQ-I-666, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE |
| MATERIAL | IRON CAST UNS F22400 OR IRON CAST UNS F22200 |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND C STYLE AND 1 CLASS |
| STYLE DESIGNATOR | INSIDE HEXAGON OR OCTAGON |
| SURFACE TREATMENT | ZINC |
| WORKING PRESSURE AND SERVICE TYPE | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL STEAM AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 125.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS |