TR39-105: BOLT,SQUARE NECK.
The BOLT,SQUARE NECK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: BUTTON, neck_width: 0.741 INCHES MINIMUM AND 0.768 INCHES MAXIMUM IN, head_height: 0.375 INCHES NOMINAL IN, neck_length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, thread_class: 2A A. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-284-7688, 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 | 0.741 INCHES MINIMUM AND 0.768 INCHES MAXIMUM IN |
| head_height | 0.375 INCHES NOMINAL IN |
| neck_length | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| thread_class | 2A A |
| head_diameter | 1.563 INCHES NOMINAL IN |
| thread_length | 2.750 INCHES NOMINAL IN |
| fastener_length | 5.000 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| nominal_thread_diameter | 0.750 INCHES IN |
| NSN | 5306-01-284-7688 |
| NECK LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.375 INCHES NOMINAL IN |
| FASTENER LENGTH | 5.000 INCHES NOMINAL IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 2.750 INCHES NOMINAL IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.750 INCHES IN |
| HEAD STYLE | BUTTON |
| THREAD DIRECTION | RIGHT-HAND |
| NECK WIDTH | 0.741 INCHES MINIMUM AND 0.768 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.