| BEARING SURFACE TYPE | WASHER FACED |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM D4066,CL 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CL B FED SPEC SINGLE MATERIAL RESPONSE NUT |
| MATERIAL | NICKEL ALLOY R-405 NUT |
| MATERIAL | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE LOCKING INSERT |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| NUT HEIGHT | 0.432 INCHES MINIMUM AND 0.436 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| SPECIAL FEATURES | NYLON INSERT ON FACE OF FLAT CENTERED; 0.149 IN. MIN AND 0.151 IN. MAX W; 0.166 IN. MIN AND 0.172 IN. MAX L |
| WIDTH ACROSS FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| THREAD CLASS | 2B |
| THREAD DIRECTION | LEFT-HAND |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 13 |