| EXTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| EXTERNAL THREAD DIRECTION | RIGHT-HAND |
| EXTERNAL THREAD SIZE | 4 IN.-8 |
| INTERNAL SCREW THREAD SERIES DESIGNATOR | NPT |
| INTERNAL THREAD DIRECTION | RIGHT-HAND |
| INTERNAL THREAD SIZE | 2 IN.-11-1/2 |
| 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 A STYLE |
| WORKING PRESSURE AND SERVICE TYPE | 150.0 POUNDS PER SQUARE INCH NOMINAL STEAM |
| STYLE DESIGNATOR | INSIDE HEXAGON OR OCTAGON |