The 458300 is a the manufacturer industrial component. Key specifications include material: STEEL FASTENER, head_style: HEXAGON EXTENDED WASHER, head_height: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.653 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN, fastener_length: 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System under NSN 6660-00-553-4641, 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 FASTENER |
| head_style | HEXAGON EXTENDED WASHER |
| head_height | 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| thread_class | 2A A |
| thread_length | 0.653 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN |
| fastener_length | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| locking_feature | STRIP THREADS |
| thread_direction | RIGHT-HAND |
| surface_treatment | PHOSPHATE FASTENER |
| width_between_flats | 0.367 INCHES NOMINAL IN |
| nominal_thread_diameter | 0.312 INCHES IN |
| extended_washer_diameter | 0.449 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| NSN | 6660-00-553-4641 |
| NECK LENGTH | 5.000 INCHES NOMINAL IN |
| USAGE DESIGN | TO CARRY INSTRUMENTS ALOFT |
| LIFTING FORCE IN GRAMS | 2800.0 |
| MINIMUM BURSTING ALTITUDE | 26000.0 METERS |
| NONDEFINITIVE SPEC/STD DATA | 600 GRAM SOUNDING TYPE G |
| COLOR | NATURAL |
| WEIGHT | 600.0 GRAMS G |
| SHAPE | SPHERICAL |
| NECK DIAMETER | 1.375 INCHES MINIMUM AND 1.850 INCHES MAXIMUM IN |