| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-N-836 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | BLACK OXIDE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-13924,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 0.302 INCHES MINIMUM AND |
| 0.323 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.736 INCHES MINIMUM AND |
| 0.750 INCHES MAXIMUM |
| BEARING SURFACE TYPE | CHAMFERED |
| SPECIFICATION/STANDARD DATA | 96906-MS35691E GOVERNMENT SPECIFICATION |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT,PLAIN,HEXAGON(JAM)UNC-2B AND UNF-2B |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS35691-B39 |