| EXTERNAL KEY QUANTITY | 2 |
| EXTERNAL STRAIGHT KEY WIDTH | 0.160 INCHES NOMINAL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6370 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 6371 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| III MATERIAL | STEEL COMP 4130 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| OVERALL DISTANCE INCLUDING KEYS | 1.437 INCHES NOMINAL |
| SPECIAL FEATURES | 69 SERRATIONS INSIDE DIA |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE FILM OVERALL |