BACB30BH4C20: BOLT,CLOSE TOLERANCE.
The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: HEXAGON, grip_length: 1.250 INCHES NOMINAL IN, head_height: 0.125 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-889-3094, 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 | IRON ALLOY 660 OVERALL |
| head_style | HEXAGON |
| grip_length | 1.250 INCHES NOMINAL IN |
| head_height | 0.125 INCHES NOMINAL IN |
| thread_class | 3A A |
| grip_diameter | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN |
| thread_length | 0.344 INCHES MINIMUM IN |
| fastener_length | 1.594 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| nominal_thread_diameter | 0.250 INCHES IN |
| thread_quantity_per_inch | 20 |
| NSN | 5306-00-889-3094 |
| HEAD HEIGHT | 0.125 INCHES NOMINAL IN |
| FASTENER LENGTH | 1.594 INCHES NOMINAL IN |
| THREAD LENGTH | 0.344 INCHES MINIMUM IN |
| SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIFICATION/STANDARD DATA | 81205-BACB30BH MANUFACTURERS STANDARD |
| GRIP LENGTH | 1.250 INCHES NOMINAL IN |
No substitute or cross-reference records for this part.