| EXTERNAL THREAD SIZE | 2-11-1/2 |
| EXTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| EXTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| INTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL THREAD SIZE | 3/4-18 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-I-666, GRADE 1 FED SPEC 2ND MATERIAL RESPONSE |
| MATERIAL | IRON MALLEABLE OR IRON CAST UNS F22400 |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE |
| STYLE DESIGNATOR | OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL) |
| SURFACE TREATMENT | OXIDE |
| WORKING PRESSURE AND SERVICE TYPE | 150.0 POUNDS PER SQUARE INCH NOMINAL WATER AND 125.0 POUNDS PER SQUARE INCH NOMINAL STEAM |