| III MATERIAL | STEEL COMP 631 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, LOCK, JAM-NUT MINATURE CIRCULAR CONNECTOR |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 0.821 INCHES MINIMUM AND 0.831 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| EXTERNAL PREBENT KEY LENGTH | 0.104 INCHES MINIMUM AND 0.136 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| HARDNESS RATING | 43.0 ROCKWELL C MINIMUM |
| HOLE DIAMETER | 0.436 INCHES MINIMUM AND 0.446 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |