| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.512 INCHES NOMINAL |
| FASTENER LENGTH | 0.547 INCHES MINIMUM AND |
| 0.577 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 301 PRIMARY WASHER |
| STEEL COMP 302 SPRING |
| ALUMINUM ALLOY 6061 STAND-OFF |
| STEEL COMP 302 OR |
| STEEL COMP 304 OR |
| STEEL COMP 305 OR |
| STEEL COMP 316 OR |
| STEEL COMP 384 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| QQ-A-225/8 T6 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| SURFACE TREATMENT | PASSIVATE PRIMARY WASHER |
| PASSIVATE SPRING |
| PASSIVATE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| HEAD STYLE | KNURLED NO. 1 |
| HEAD DIAMETER | 0.451 INCHES NOMINAL |
| HEAD HEIGHT | 0.520 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL ACCOMMODATED THICKNESS | 0.094 INCHES MINIMUM AND |
| 0.155 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |