| MATERIAL | COPPER ALLOY 270 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SHEAR STRENGTH | 36000 DOUBLE POUNDS PER SQUARE INCH |
| HEAD STYLE | COUNTERSUNK W/ REVERSE CHAMFER |
| HEAD HEIGHT | 0.071 INCHES MINIMUM AND |
| 0.085 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.458 INCHES MINIMUM AND |
| 0.478 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 148.0 DEGREES MINIMUM AND |
| 150.0 DEGREES MAXIMUM |
| SHANK STYLE | TUBULAR |
| FASTENER LENGTH | 0.740 INCHES MINIMUM AND |
| 0.760 INCHES MAXIMUM |
| HOLE DIAMETER | 0.173 INCHES MINIMUM AND |
| 0.183 INCHES MAXIMUM |
| SHANK DIAMETER | 0.244 INCHES MINIMUM AND |
| 0.252 INCHES MAXIMUM |
| HOLE DEPTH | 0.203 INCHES MINIMUM AND |
| 0.234 INCHES MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 13 TYPE AND |
| F GRADE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FF-R-556 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS16536-250 |