| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES DESIGNATOR | UNC |
| FASTENER LENGTH | 0.478 INCHES NOMINAL |
| HEAD DIAMETER | 0.172 INCHES MINIMUM AND 0.202 INCHES MAXIMUM |
| HEAD HEIGHT | 0.108 INCHES MINIMUM AND 0.112 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| MATERIAL ACCOMMODATED THICKNESS | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL | IRON ALLOY 660 FASTENER |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L SPRING |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 304 OR STEEL COMP 304L STAND-OFF |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| WIDTH ACROSS FLATS | 0.078 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD LENGTH | 0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |