| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| GRIP LENGTH | 0.438 INCHES NOMINAL |
| HEAD MAJOR DIAMETER | 0.386 INCHES MINIMUM AND 0.399 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| LUBRICATION | DRY FILM OR SOLID FILM AND CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | NAS621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | TITANIUM OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN-RIVET, GROOVED, 100 DEGREE C SUNK HEAD, SHEAR, LOCKBOLT, STUMP TYPE, TITANIUM, 95 KSI FSU |
| SHANK DIAMETER | 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHANK STYLE | STUMP |
| SPECIAL FEATURES | PROCUREMENT SPECIFICATION NAS 621;RADIUS TO BE TANGENT TO SHANK AT 18.5 DEGREE ANGLE;DIMENTIONS BEFORE LUBRICATION;LOCKING GROOVES MAY BE GROUND OR ROLLED AT MANUFACTURERES OPTION;CONICAL SURFACE OF HEAD TO SHANK WITHIN .003 TIR |
| SPECIFICATION/STANDARD DATA | 76301-ST3-861 MANUFACTURERS STANDARD |