| DEPARTURE FROM CITED DESIGNATOR | AS MOD BY THD FORMING METHOD |
| FLUTE QUANTITY | 5 |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS |
| OVERALL LENGTH | 3.938 INCHES MINIMUM AND 4.063 INCHES MAXIMUM |
| MATERIAL AND LOCATION | STEEL, HIGH SPEED OVERALL |
| SHANK DIAMETER | 1.311 INCHES MINIMUM AND 1.313 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD FORMING METHOD | CUT |
| THREAD LENGTH | 1.656 INCHES MINIMUM AND 1.844 INCHES MAXIMUM |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 1.250-11-1/2 NPT |
| THREAD STRUCTURE | REGULAR |
| WIDTH ACROSS FLATS | 0.976 INCHES MINIMUM AND 0.984 INCHES MAXIMUM |
| SQUARE END LENGTH | 0.875 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| STYLE DESIGNATOR | STRAIGHT FLUTE |