| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.383 INCHES MINIMUM AND 0.391 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.018 INCHES MINIMUM AND 0.024 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 410 OVERALL |
| SPECIAL FEATURES | 8 INTERNAL TEETH EQUALLY SPACED |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| STYLE DESIGNATOR | FLAT INTERNAL TEETH |