| BEARING SURFACE TYPE | CHAMFERED |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | STEEL G5 IAW SAE J1995 ASSN STD SINGLE MATERIAL RESPONSE OVERALL EXCEPT INSERT |
| MATERIAL | STEEL OVERALL EXCEPT INSERT |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT HEIGHT | 0.229 INCHES MINIMUM AND 0.249 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, SELF-LOCKING, HEXAGON NON-METALLIC LOCKING FEATURE, 250 DEG F, UNC-3B |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-45913/3 GOVERNMENT SPECIFICATION |
| WIDTH ACROSS FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
| SUPPLEMENTARY FEATURES | MRC ACTA (STYLE) IS A8 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-16232, TY Z, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT | PHOSPHATE OVERALL EXCEPT INSERT |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNC |