FFB548: BOLT,SQUARE NECK.
The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, head_height: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, neck_length: 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-852-7068, 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 |
| neck_width | 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| head_height | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| neck_length | 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| thread_class | 2A A |
| head_diameter | 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM IN |
| thread_length | 1.500 INCHES MINIMUM IN |
| fastener_length | 6.906 INCHES MINIMUM AND 7.094 INCHES MAXIMUM IN |
| hardness_rating | 95.0 ROCKWELL B MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | ZINC AND CHROMATE OVERALL |
| NSN | 5306-00-852-7068 |
| NECK LENGTH | 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| FASTENER LENGTH | 6.906 INCHES MINIMUM AND 7.094 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-C-81562,TYPE 2 CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 1.500 INCHES MINIMUM IN |
| HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL |
| CRITICALITY CODE JUSTIFICATION | SFTT |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.500 INCHES IN |
| HEAD STYLE | BUTTON |