| BEARING SURFACE TYPE | CHAMFERED |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT HEIGHT | 0.133 INCHES MINIMUM AND 0.153 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | T4 FED SPEC 1ST MATERIAL RESPONSE NUT |
| MATERIAL | ALUMINUM ALLOY 2017 NUT |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| NOMINAL THREAD SIZE | 0.112 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SPECIAL FEATURES | COLOR BLACK |
| WIDTH ACROSS FLATS | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 951024 FSCM 05257 MFR REF SINGLE TREATMENT RESPONSE NUT |
| SURFACE TREATMENT | ANODIZE NUT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 40 |