NUT,PLAIN,SINGLE BALL SEAT,HEXAG. Key specifications include material: STEEL OVERALL, nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL JOINT (UNJ), ball_seat_radius: 0.875 INCHES NOMINAL IN, thread_direction: LEFT-HAND. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-078-7026, 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 OVERALL |
| nut_style | SINGLE BALL SEAT, HEXAGON |
| nut_height | 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| thread_series | UNIFIED NATIONAL JOINT (UNJ) |
| ball_seat_radius | 0.875 INCHES NOMINAL IN |
| thread_direction | LEFT-HAND |
| surface_treatment | CADMIUM OR ZINC OVERALL |
| width_across_flats | 1.475 INCHES MINIMUM AND 1.495 INCHES MAXIMUM IN |
| nominal_thread_size | 1.125 INCHES IN |
| thread_pitch_diameters | +1.0829 TO 1.0899 INCHES IN |
| end_item_identification | W/S:TRAILER, SEMI (M172A1) |
| thread_quantity_per_inch | 16 |
| NSN | 5310-00-078-7026 |
| SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |
| MATERIAL | STEEL OVERALL |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES | UNIFIED NATIONAL JOINT (UNJ) |
| NOMINAL THREAD SIZE | 1.125 INCHES IN |
| THREAD PITCH DIAMETERS | +1.0829 TO 1.0899 INCHES IN |
| NUT HEIGHT | 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| BALL SEAT RADIUS | 0.875 INCHES NOMINAL IN |
| NUT STYLE | SINGLE BALL SEAT, HEXAGON |
| THREAD DIRECTION | LEFT-HAND |