| COTTER PIN HOLE DIAMETER | 0.406 INCHES NOMINAL THIRD HOLE |
| COTTER PIN HOLE DIAMETER | 0.218 INCHES NOMINAL SECOND HOLE |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.343 INCHES NOMINAL SECOND HOLE |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 12.812 INCHES NOMINAL THIRD HOLE |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM |
| OVERALL LENGTH | 13.312 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE4140 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4140 |
| NOMINAL THREAD SIZE | 1.250 INCHES NUT THREAD A |
| NOMINAL THREAD SIZE | 1.250 INCHES NUT THREAD B |
| THREAD CLASS | 3A NUT THREAD A |
| THREAD CLASS | 3A NUT THREAD B |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD A |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD B |
| THREAD LENGTH | 2.062 INCHES MINIMUM NUT THREAD A |
| THREAD LENGTH | 2.250 INCHES MINIMUM NUT THREAD B |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD A |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD B |
| THREAD QUANTITY PER INCH | 12 NUT THREAD A |
| THREAD QUANTITY PER INCH | 12 NUT THREAD B |