00144: NUT,SELF-LOCKING,EXTENDED WASHER.
NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include head_style: FLAT CHAMFER, head_height: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN, fastener_length: 1.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-273-7776, 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.
| head_style | FLAT CHAMFER |
| head_height | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| fastener_length | 1.250 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_across_flats | 0.250 INCHES NOMINAL IN |
| internal_drive_style | HEXAGON |
| nominal_thread_diameter | 0.312 INCHES IN |
| thread_quantity_per_inch | 18 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5310-00-273-7776 |
| OVERALL HEIGHT | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| WASHER OUTSIDE DIAMETER | 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN |
| WIDTH ACROSS FLATS | 0.556 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| THREAD SERIES | UNF |
| HARDNESS RATING | 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM |
| WASHER THICKNESS | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 4140 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.375 INCHES IN |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
No substitute or cross-reference records for this part.