| BODY DIAMETER | 0.250 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| NUT STYLE | WING |
| OVERALL HEIGHT | 0.282 INCHES MINIMUM AND 0.406 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 1ST MATERIAL RESPONSE OR 66,300 SERIES FED STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY OR STEEL OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| WING SPREAD WIDTH | 0.594 INCHES MINIMUM AND 0.718 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL OR PASSIVATE OVERALL |