LH13374-4LH: NUT,SELF-LOCKING,EXTENDED WASHER.
NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 4340 AND STEEL COMP 8740 OVERALL, nut_style: HEXAGON, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.204 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5310-01-377-0763, 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 AND STEEL COMP 8740 OVERALL |
| nut_style | HEXAGON |
| lubrication | DRY FILM LUBRICANT |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| overall_height | 0.204 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| hardness_rating | 49.0 ROCKWELL C MAXIMUM |
| locking_feature | PREVAILING TORQUE ALL METAL DESIGN |
| thread_direction | LEFT-HAND |
| washer_thickness | 0.090 INCHES MINIMUM IN |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| width_across_flats | 0.304 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| NSN | 5310-01-377-0763 |
| LUBRICATION | DRY FILM LUBRICANT |
| OVERALL HEIGHT | 0.204 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 0.420 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 0.304 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| HARDNESS RATING | 49.0 ROCKWELL C MAXIMUM |
| WASHER THICKNESS | 0.090 INCHES MINIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | LEFT-HAND |