| FASTENER LENGTH | 1.413 INCHES NOMINAL |
| HEAD DIAMETER | 0.392 INCHES NOMINAL |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL ACCOMMODATED THICKNESS | 0.250 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5673 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A-493 ASSN STD ALL MATERIAL RESPONSES FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE PRIMARY WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-22518 FED SPEC SINGLE MATERIAL RESPONSE HEAD |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STAND-OFF |
| MATERIAL | STEEL COMP 631 SPRING |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | SELF LOCKING |
| WIDTH ACROSS FLATS | 0.187 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF |
| SURFACE TREATMENT | ANODIZE HEAD |
| SURFACE TREATMENT | PASSIVATE FASTENER |
| SURFACE TREATMENT | PASSIVATE PRIMARY WASHER |
| SURFACE TREATMENT | PASSIVATE SECONDARY WASHER |
| SURFACE TREATMENT | PASSIVATE SPRING |
| SURFACE TREATMENT | PASSIVATE STAND-OFF |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNF |