BACB30LR4-9-9Y: BOLT,CLOSE TOLERANCE.
The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.5625 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.2479 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN, head_diameter: 0.455 INCHES MINIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-01-668-1483, 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 CORROSION RESISTING OVERALL |
| head_style | FLAT COUNTERSUNK |
| grip_length | 0.5625 INCHES NOMINAL IN |
| thread_class | 3A A |
| grip_diameter | 0.2479 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN |
| head_diameter | 0.455 INCHES MINIMUM IN |
| thread_length | 0.425 INCHES NOMINAL IN |
| fastener_length | 0.9875 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| surface_treatment | CADMIUM AND CHROMATE OVERALL |
| end_item_identification | P-8A AIRCRAFT A |
| NSN | 5306-01-668-1483 |
| FASTENER LENGTH | 0.9875 INCHES NOMINAL IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.425 INCHES NOMINAL IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIFICATION/STANDARD DATA | 81205-BACB30LR PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| GRIP LENGTH | 0.5625 INCHES NOMINAL IN |
| GRIP DIAMETER | 0.2479 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.