NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: DOUBLE HEXAGON, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 1.406 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-515-7554, 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 | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| nut_style | DOUBLE HEXAGON |
| temp_rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| thread_class | 3B |
| thread_series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| overall_height | 1.406 INCHES NOMINAL IN |
| locking_feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| thread_direction | RIGHT-HAND |
| washer_thickness | 0.500 INCHES NOMINAL IN |
| surface_treatment | CADMIUM OVERALL EXCEPT INSERT |
| width_across_flats | 1.490 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| nominal_thread_size | 1.250 INCHES IN |
| NSN | 5310-00-515-7554 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WIDTH ACROSS FLATS | 1.490 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| NOMINAL THREAD SIZE | 1.250 INCHES IN |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4340 OR STEEL COMP 3140 OR STEEL COMP 8740 OVERALL EXCEPT INSERT |
| THREAD QUANTITY PER INCH | 12 |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL DEGF |
| WASHER OUTSIDE DIAMETER | 2.115 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| OVERALL HEIGHT | 1.406 INCHES NOMINAL IN |
| THREAD CLASS | 3B |