| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 360 OVERALL |
| NOMINAL THREAD SIZE | 0.112 INCHES |
| NUT DIAMETER | 0.341 INCHES MINIMUM AND 0.347 INCHES MAXIMUM |
| NUT STYLE | SPLINE |
| NUT HEIGHT | 0.755 INCHES MINIMUM AND 0.765 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PILOT DIAMETER | 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| PILOT LENGTH | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 1,CL 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 40 |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |