| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.421 INCHES MINIMUM AND 0.426 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY ANGLE | 30.0 DEGREES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.050 INCHES NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM |
| HARDNESS RATING | 43.0 ROCKWELL C MINIMUM |
| HOLE DIAMETER | 0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| INTERNAL STRAIGHT KEY WIDTH | 0.062 INCHES MINIMUM AND 0.066 INCHES MAXIMUM |
| III MATERIAL | STEEL COMP 631 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, LOCK, MS21340 AND MS3186 NUTS, INT/EXT KEY |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 1.315 INCHES MINIMUM AND 1.325 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |