430494-1: MODIFICATION KIT,VEHICULAR EQUIP.
MODIFICATION KIT,VEHICULAR EQUIP. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8735 OR STEEL COMP 8740 FASTENER, head_style: BEVEL-CONICAL, head_height: 0.375 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN, thread_length: 0.662 INCHES MINIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-406-2161, 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 4140 OR STEEL COMP 4340 OR STEEL COMP 8735 OR STEEL COMP 8740 FASTENER |
| head_style | BEVEL-CONICAL |
| head_height | 0.375 INCHES NOMINAL IN |
| thread_class | 3A A |
| head_diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| thread_length | 0.662 INCHES MINIMUM IN |
| fastener_length | 1.547 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN |
| hardness_rating | 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| locking_feature | PATCH OR STRIP THREADS |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND CHROMATE FASTENER |
| width_across_flats | 0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| NSN | 5306-01-406-2161 |
| WIDTH ACROSS FLATS | 0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.375 INCHES NOMINAL IN |
| FASTENER LENGTH | 1.547 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES FASTENER |
| THREAD LENGTH | 0.662 INCHES MINIMUM IN |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES IN |
| HEAD STYLE | BEVEL-CONICAL |
| THREAD DIRECTION | RIGHT-HAND |
| LOCKING FEATURE | PATCH OR STRIP THREADS |
No substitute or cross-reference records for this part.