74D291033-2025: BOLT,EXTERNALLY RELIEVED BODY.
The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, hole_type: DRILLED, head_style: PAN, head_height: 0.470 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-303-3902, 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 COMP XM-13 OVERALL |
| hole_type | DRILLED |
| head_style | PAN |
| head_height | 0.470 INCHES NOMINAL IN |
| thread_class | 3A A |
| head_diameter | 1.000 INCHES NOMINAL IN |
| hole_diameter | 0.270 INCHES NOMINAL IN |
| hole_quantity | 1 |
| thread_length | 1.720 INCHES NOMINAL IN |
| fastener_length | 3.900 INCHES NOMINAL IN |
| special_features | COUNTERSUNK HOLE AT THE END OF THREADS,0.095 IN. MIN,0.155 IN. MAX DIA; GROOVE,0.580 IN. LG FROM END,1.030 IN. MIN,1.040 IN. MAX DIA IN |
| thread_direction | RIGHT-HAND |
| NSN | 5306-01-303-3902 |
| FOURTH DIAMETER FROM HEAD | 1.020 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.470 INCHES NOMINAL IN |
| FASTENER LENGTH | 3.900 INCHES NOMINAL IN |
| THREAD LENGTH | 1.720 INCHES NOMINAL IN |
| SHANK UNTHREADED HOLE DIAMETER | 0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM FIRST HOLE IN |
| HOLE CONFIGURATION STYLE | ROUND LONGITUDINAL HOLE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| FIRST DIAMETER FROM HEAD | 0.470 INCHES NOMINAL IN |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.980 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 1.125 INCHES IN |