| DISTANCE FROM END OF STUD END THREADS TO NUT END | 1.193 INCHES MINIMUM AND 1.223 INCHES MAXIMUM |
| LOCKING FEATURE | RING, LOCK KEYED |
| OVERALL LENGTH | 1.615 INCHES MINIMUM AND 1.675 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD0.437 INCHES STUD THREAD |
| SPECIAL FEATURES | LOCKING KEYS EQUALLY SPACED |
| STYLE DESIGNATOR | LOCKED IN |
| SURFACE FINISH | 32.0 MICROINCHES NUT THD63.0 MICROINCHES SHANK32.0 MICROINCHES STUD THD |
| THREAD CLASS | 2A NUT THREAD2A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREADRIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.739 INCHES NOMINAL NUT THREAD0.422 INCHES MINIMUM AND 0.452 INCHES MAXIMUM STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREADUNC STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD14 STUD THREAD |