3M33-4-20A: BOLT,CLOSE TOLERANCE.
The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 1.250 INCHES NOMINAL IN, head_height: 0.156 INCHES NOMINAL IN, thread_class: 3A A. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-243-2263, 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 |
| hole_type | DRILLED |
| head_style | HEXAGON |
| grip_length | 1.250 INCHES NOMINAL IN |
| head_height | 0.156 INCHES NOMINAL IN |
| thread_class | 3A A |
| grip_diameter | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN |
| hole_diameter | 0.048 INCHES NOMINAL IN |
| hole_quantity | 1 |
| thread_length | 0.469 INCHES MAXIMUM IN |
| fastener_length | 1.703 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| thread_direction | RIGHT-HAND |
| NSN | 5306-00-243-2263 |
| HEAD HEIGHT | 0.156 INCHES NOMINAL IN |
| FASTENER LENGTH | 1.703 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.469 INCHES MAXIMUM IN |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| 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 |
| GRIP LENGTH | 1.250 INCHES NOMINAL IN |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
No substitute or cross-reference records for this part.