| COTTER PIN HOLE DIAMETER | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| DISTANCE FROM COTTER PIN HOLE CENTERLINE TO NUT END | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM FIRST HOLE |
| HARDNESS RATING | 21.0 ROCKWELL C NOMINAL |
| OVERALL LENGTH | 1.046 INCHES MINIMUM AND 1.093 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.250 INCHES STUD THREAD |
| SPECIFICATION/STANDARD DATA | 80205-NAS183 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM NUT THREAD |
| THREAD QUANTITY PER INCH | 20 STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| THREAD PITCH DIAMETERS | +0.2192 TO 0.2204 INCHES STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |