91255A540: SCREW,CAP,SOCKET HEAD.
The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, head_height: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN, thread_length: 0.650 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-335-9277, 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 OVERALL |
| head_style | BUTTON |
| head_height | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| thread_class | 3A A |
| head_diameter | 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| thread_length | 0.650 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| fastener_length | 0.750 INCHES NOMINAL IN |
| hardness_rating | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | OXIDE OVERALL |
| width_across_flats | 0.156 INCHES NOMINAL IN |
| internal_drive_style | HEXAGON |
| NSN | 5305-01-335-9277 |
| WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.750 INCHES NOMINAL IN |
| THREAD LENGTH | 0.650 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | BUTTON |
| THREAD DIRECTION | RIGHT-HAND |
| COLOR | BLACK OVERALL |