| FASTENER LENGTH | 0.235 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| HEAD DIAMETER | 0.469 INCHES MINIMUM AND 0.580 INCHES MAXIMUM |
| HEAD HEIGHT | 0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 431 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS3652 ASSN STD SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE PRIMARY WASHER |
| MATERIAL | STEEL COMP 431 FASTENER |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PRIMARY WASHER STYLE | FLAT |
| SPECIAL FEATURES | FURNISH WITH ONE O-RING MANUFACTURED TO AMS 3304 (-85 TO 559 DEG F) |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| THREAD LENGTH | 0.164 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |