| THREAD SERIES DESIGNATOR | UNF | 
| NOMINAL THREAD DIAMETER | 0.190 INCHES | 
| THREAD QUANTITY PER INCH | 32 | 
| THREAD CLASS | 3A | 
| THREAD DIRECTION | RIGHT-HAND | 
| FASTENER LENGTH | 1.000 INCHES NOMINAL | 
| MATERIAL | STEEL COMP 301 SECONDARY WASHER | 
 | STEEL CORROSION RESISTING PRIMARY WASHER | 
 | STEEL COMP 302 SPRING | 
 | STEEL COMP 304 STAND-OFF | 
 | STEEL CORROSION RESISTING FASTENER | 
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE SECONDARY WASHER | 
 | ASTM A493 ASSN STD ALL MATERIAL RESPONSES PRIMARY WASHER | 
 | QQ-423, COND B FED SPEC SINGLE MATERIAL RESPONSE SPRING | 
 | MIL-S-23195 MIL SPEC SINGLE MATERIAL RESPONSE STAND-OFF | 
| SURFACE TREATMENT | OXIDE SECONDARY WASHER | 
 | OXIDE PRIMARY WASHER | 
 | OXIDE STAND-OFF | 
 | OXIDE FASTENER | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECONDARY WASHER | 
 | MIL-C-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE PRIMARY WASHER | 
 | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING | 
 | MIL-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE STAND-OFF | 
 | MIL-C-13924, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER | 
| COLOR | BLACK SECONDARY WASHER | 
 | BLACK PRIMARY WASHER | 
 | BLACK SPRING | 
 | BLACK FASTENER | 
| HEAD STYLE | KNURLED NO. 3 | 
| HEAD DIAMETER | 0.365 INCHES NOMINAL | 
| HEAD HEIGHT | 0.145 INCHES NOMINAL | 
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE III | 
| MATERIAL ACCOMMODATED THICKNESS | 0.025 INCHES NOMINAL |