| COUNTERSINK ANGLE | 98.5 DEGREES MINIMUM AND 101.5 DEGREES MAXIMUM |
| EXPANSION DEVICE | SERRATED STEM-TYPE W |
| FASTENER LENGTH | 0.388 INCHES NOMINAL |
| GRIP LENGTH | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| HEAD MAJOR DIAMETER | 0.282 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE LOCKING RING |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| MATERIAL | ALUMINUM ALLOY 5056 LOCKING RING |
| MATERIAL | ALUMINUM ALLOY 5056 SLEEVE |
| MATERIAL | ALUMINUM ALLOY 5056 STEM |
| MINIMUM TENSILE STRENGTH | 490 POUNDS PER SQUARE INCH |
| SHANK DIAMETER | 0.172 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| SHANK STYLE | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| SHEAR STRENGTH | 855 SINGLE POUNDS PER SQUARE INCH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE STEM |
| SURFACE TREATMENT | ANODIZE STEM |