| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.235 INCHES MINIMUM AND |
| 0.265 INCHES MAXIMUM |
| FASTENER LENGTH | 0.480 INCHES MINIMUM AND |
| 0.520 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 302 OR |
| STEEL COMP 302B OR |
| STEEL COMP 303 OR |
| STEEL COMP 304L SECONDARY WASHER |
| STEEL COMP 302 PRIMARY WASHER |
| ALUMINUM ALLOY 7075 STAND-OFF |
| STEEL COMP 302 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 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| SURFACE TREATMENT | PASSIVATE SECONDARY WASHER |
| PASSIVATE PRIMARY WASHER |
| CHROMATE STAND-OFF |
| PASSIVATE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| HEAD STYLE | PAN |
| HEAD DIAMETER | 0.260 INCHES NOMINAL |
| HEAD HEIGHT | 0.190 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL ACCOMMODATED THICKNESS | 0.076 INCHES MINIMUM AND |
| 0.086 INCHES MAXIMUM |