| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.110 INCHES NOMINAL FIRST HOLE |
| COTTER PIN HOLE DIAMETER | 0.047 INCHES NOMINAL FIRST HOLE |
| OVERALL LENGTH | 1.281 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHANK DIAMETER | 0.193 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| STYLE DESIGNATOR | STEPPED |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.500 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.500 INCHES NOMINAL STUD THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD PITCH DIAMETERS | +0.2683 TO 0.2737 INCHES STUD THREAD |
| THREAD SERIES DESIGNATOR | UNC NUT THREAD |