NUT,SELF-LOCKING,CONE SEAT,HEXAG. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.328 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-061-4650, indicating validated use in U.S.
government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| material | STEEL NUT |
| nut_style | HEXAGON |
| nut_height | 0.328 INCHES MAXIMUM IN |
| temp_rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL COARSE (UNC) |
| hardness_rating | 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| locking_feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_across_flats | 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| nominal_thread_size | 0.250 INCHES IN |
| NSN | 5310-00-061-4650 |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| THREAD QUANTITY PER INCH | 20 |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL DEGF |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| END ITEM IDENTIFICATION | MRAP - COUGAR TOW |
| NOMINAL THREAD SIZE | 0.250 INCHES IN |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| THREAD CLASS | 3B |