| COUNTERBORE DIAMETER | 0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM NUT |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT COUNTERBORE DEPTH | 0.040 INCHES NOMINAL NUT |
| NUT DIAMETER | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM |
| NUT HEIGHT | 0.327 INCHES MINIMUM AND 0.333 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PILOT LENGTH | 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM |
| PILOT DIAMETER | 0.252 INCHES MINIMUM AND 0.256 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| TEMP RATING | 350.0 FAHRENHEIT NOMINAL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 32 |