37C300385P102: NUT,PLAIN,EXTENDED WASHER,HEXAGO.
NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL COMP 4340 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN, hardness_rating: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-975-5182, 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 4340 OVERALL |
| nut_style | HEXAGON |
| thread_class | 3B |
| thread_series | UNF |
| overall_height | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| hardness_rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| washer_thickness | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| surface_treatment | OXIDE OVERALL |
| width_across_flats | 1.615 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN |
| nominal_thread_size | 1.125 INCHES IN |
| counterbore_diameter | 2.200 INCHES MINIMUM AND 2.220 INCHES MAXIMUM WASHER IN |
| NSN | 5310-00-975-5182 |
| OVERALL HEIGHT | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 2.763 INCHES MINIMUM AND 2.768 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 1.615 INCHES MINIMUM AND 1.627 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNF |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| WASHER THICKNESS | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| NUT COUNTERBORE DEPTH | 0.162 INCHES MINIMUM AND 0.172 INCHES MAXIMUM WASHER IN |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 1.125 INCHES IN |
No substitute or cross-reference records for this part.