559846: NUT,PLAIN,EXTENDED WASHER,DOUBLE.
NUT,PLAIN,EXTENDED WASHER,DOUBLE. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, hardness_rating: 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-833-2944, 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 8740 OVERALL |
| nut_style | DOUBLE HEXAGON |
| thread_class | 3B |
| thread_series | UNF |
| overall_height | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| hardness_rating | 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| washer_thickness | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| countersink_angle | 90.0 DEGREES NOMINAL NUT |
| surface_treatment | CADMIUM OVERALL |
| width_across_flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| nominal_thread_size | 0.250 INCHES IN |
| NSN | 5310-00-833-2944 |
| OVERALL HEIGHT | 0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 0.459 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNF |
| HARDNESS RATING | 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM |
| WASHER THICKNESS | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.250 INCHES IN |
No substitute or cross-reference records for this part.