| COUNTERSINK ANGLE | 45.0 DEGREES NOMINAL NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| NUT DIAMETER | 0.247 INCHES MINIMUM AND 0.253 INCHES MAXIMUM |
| NUT HEIGHT | 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| NUT STYLE | SPLINE |
| PILOT LENGTH | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| PILOT DIAMETER | 0.196 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |