R74194: BOLT,EXTERNALLY RELIEVED BODY.
The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8637 OR STEEL COMP 8640 OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.390 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 1.100 INCHES NOMINAL IN, fastener_length: 2.130 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-105-6653, 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 8637 OR STEEL COMP 8640 OVERALL |
| head_style | HEXAGON EXTENDED WASHER |
| head_height | 0.390 INCHES NOMINAL IN |
| thread_class | 3A A |
| thread_length | 1.100 INCHES NOMINAL IN |
| fastener_length | 2.130 INCHES NOMINAL IN |
| hardness_rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.438 INCHES IN |
| extended_washer_diameter | 0.730 INCHES NOMINAL IN |
| first_diameter_from_head | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| NSN | 5306-01-105-6653 |
| EXTENDED WASHER THICKNESS | 0.080 INCHES NOMINAL IN |
| HEAD HEIGHT | 0.390 INCHES NOMINAL IN |
| FASTENER LENGTH | 2.130 INCHES NOMINAL IN |
| EXTENDED WASHER DIAMETER | 0.730 INCHES NOMINAL IN |
| THREAD LENGTH | 1.100 INCHES NOMINAL IN |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| FIRST DIAMETER FROM HEAD | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.438 INCHES IN |
| HEAD STYLE | HEXAGON EXTENDED WASHER |