NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 4130 OVERALL, head_style: HEXAGON, head_height: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, fastener_length: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-577-8455, 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 4130 OVERALL |
| head_style | HEXAGON |
| head_height | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| thread_class | 3A A |
| thread_length | 0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| fastener_length | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM OVERALL |
| width_between_flats | 0.312 INCHES NOMINAL IN |
| nominal_thread_diameter | 0.190 INCHES IN |
| first_diameter_from_head | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| NSN | 6240-00-577-8455 |
| BULB LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT |
| LIGHT CENTER LENGTH | 3.000 INCHES NOMINAL IN |
| BULB STYLE | T (TUBULAR) |
| BURNING POSITION | BASE DOWN |
| EMITTED LIGHT CHARACTERISTIC | WHITE |
| BASE STYLE | THREE CONTACT MEDIUM SCREW |
| OVERALL LENGTH | 5.312 INCHES MAXIMUM IN |
| WATTAGE RATING | 50.000 WATTS |
| VOLTAGE RATING | 115.000 VOLTS NOMINAL |
| FILAMENT DESIGNATION | C-5/C-9 |