28902: ACCESSORY KIT,ELECTRONIC EQUIPME.
Record cards to write on as refills for Cardo Phone box. White and with ruling on both sides. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM.
This part is cataloged in the U.S. Government catalog under NSN 5310-00-655-9544, 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 | HEXAGON |
| nut_height | 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN |
| thread_class | 2B |
| thread_series | UNIFIED NATIONAL COARSE (UNC) |
| hardness_rating | 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| thread_direction | RIGHT-HAND |
| width_across_flats | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| nominal_thread_size | 0.375 INCHES IN |
| bearing_surface_type | CHAMFERED OR WASHER FACED |
| unpackaged_unit_weight | 0.05 POUNDS LBS |
| thread_quantity_per_inch | 16 |
| NSN | 5310-00-655-9544 |
| WIDTH ACROSS FLATS | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| HARDNESS RATING | 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.375 INCHES IN |
| NUT HEIGHT | 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN |
| NUT STYLE | HEXAGON |
| THREAD CLASS | 2B |
| THREAD QUANTITY PER INCH | 16 |
| MATERIAL | STEEL OVERALL |