NUT,PLAIN,SINGLE BALL SEAT,HEXAG. Key specifications include nut_style: SINGLE BALL SEAT, HEXAGON, nut_height: 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, ball_seat_radius: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM 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 5310-00-518-5566, 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 COMP 4135 OR STEEL COMP 4140 OR STEEL COMP 5135 OR STEEL COMP 5140 OR STEEL COMP 8637 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL |
| nut_style | SINGLE BALL SEAT, HEXAGON |
| nut_height | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN |
| thread_class | 2B |
| thread_series | UNF |
| ball_seat_radius | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| thread_direction | LEFT-HAND |
| features_provided | CASEHARDENED |
| surface_treatment | CADMIUM OVERALL |
| width_across_flats | 1.475 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN |
| nominal_thread_size | 0.750 INCHES IN |
| thread_quantity_per_inch | 16 |
| NSN | 5310-00-518-5566 |
| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.750 INCHES IN |
| FEATURES PROVIDED | CASEHARDENED |
| THREAD QUANTITY PER INCH | 16 |
| NUT HEIGHT | 0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 1.475 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| THREAD CLASS | 2B |
| THREAD DIRECTION | LEFT-HAND |
| NUT STYLE | SINGLE BALL SEAT, HEXAGON |