| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.198 INCHES MINIMUM AND 1.218 INCHES MAXIMUM FIRST HOLE |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.303 INCHES NOMINAL |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM FASTENER |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM LOCKING FEATURE |
| HEAD DIAMETER | 0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5644 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A580 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE FASTENER |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SPECIAL FEATURES | SPINDLE PASSIVATE PER QQ-P-35; 180000 PSI; MATERIAL CRES AMS 5643 17-4PH OR ALLOY STEEL PER MIL-S-6049 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING |
| SURFACE TREATMENT | CADMIUM AND CHROMATE FASTENER |