91257A640: SCREW,CAP,HEXAGON HEAD.
The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.250 MILLIMETERS NOMINAL MM, thread_class: 2A A, thread_length: 1.0000 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN, fastener_length: 4.0 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-641-6947, 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 | HEXAGON |
| head_height | 0.250 MILLIMETERS NOMINAL MM |
| thread_class | 2A A |
| thread_length | 1.0000 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| fastener_length | 4.0 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | ZINC OVERALL |
| width_between_flats | 0.5625 MILLIMETERS NOMINAL MM |
| end_item_identification | MRAP - COUGAR TOW; MRAP - COUGAR SABR/TOW |
| nominal_thread_diameter | 0.3750 INCHES IN |
| thread_quantity_per_inch | 16 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5305-01-641-6947 |
| HEAD HEIGHT | 0.250 MILLIMETERS NOMINAL MM |
| FASTENER LENGTH | 4.0 INCHES NOMINAL IN |
| THREAD LENGTH | 1.0000 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.3750 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| WIDTH BETWEEN FLATS | 0.5625 MILLIMETERS NOMINAL MM |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 2A A |
| END ITEM IDENTIFICATION | MRAP - COUGAR TOW; MRAP - COUGAR SABR/TOW |
No substitute or cross-reference records for this part.