| MATERIAL | ALUMINUM ALLOY 2024 BODY |
| ALUMINUM ALLOY 2024 OR |
| ALUMINUM ALLOY 5052 WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-430 FED SPEC SINGLE MATERIAL RESPONSE OR |
| QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE COLLAR |
| QQ-A-250/4 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-250/5 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-250/8 FED SPEC 2ND MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT | ANODIZE COLLAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY |
| HEAT TREATMENT | T-6 SOLUTION HEAT TREATED COLLAR |
| T-6 SOLUTION HEAT TREATED WASHER |
| COLLAR STYLE | THREADED (BREAK OFF) TYPE |
| COLLAR OUTSIDE DIAMETER | 0.288 INCHES MINIMUM AND |
| 0.292 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.427 INCHES MINIMUM AND |
| 0.447 INCHES MAXIMUM |
| COLLAR INSIDE DIAMETER | 0.166 INCHES MINIMUM AND |
| 0.173 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJC |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| THREAD CLASS | 3B |
| THREAD QUANTITY PER INCH | 32 |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIAL FEATURES | WASHER FINISH IS SOLID FILM LUBE PER MIL-L-8937; HEAT TREAT,T6 COND PER MIL-H-6088 WASHER FOR MATL 2024 ONLY |