| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| EXPANSION DEVICE | SERRATED STEM-TYPE W |
| FASTENER LENGTH | 0.506 INCHES NOMINAL |
| GRIP LENGTH | 0.219 INCHES MINIMUM AND 0.282 INCHES MAXIMUM |
| HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM STEM |
| HEAD MAJOR DIAMETER | 0.634 INCHES NOMINAL |
| HEAD STYLE | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OR AMS5690 ASSN STD 3RD MATERIAL RESPONSE MECHANICAL LOCK |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A-331 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A-331 ASSN STD SINGLE MATERIAL RESPONSE SLEEVE |
| MATERIAL | STEEL COMP 1010 OR STEEL COMP 1020 OR STEEL COMP 1144 OR STEEL COMP 4037 OR STEEL COMP 4130 OR IRON ALLOY 660 OR STEEL COMP 316 MECHANICAL LOCK |
| MATERIAL | STEEL SLEEVE |
| MATERIAL | STEEL STEM |
| MINIMUM TENSILE STRENGTH | 5200 POUNDS PER SQUARE INCH |
| SHANK DIAMETER | 0.310 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| SHANK STYLE | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| SHEAR STRENGTH | 8500 SINGLE POUNDS PER SQUARE INCH |
| SPECIFICATION/STANDARD DATA | 96906-MS90353 REV. U GOVERNMENT SPECIFICATION |
| SPECIAL FEATURES | SINGLE ACTION FASTENERS INSTALLED WITH A SINGLE ACTION TOOL. |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |