120657: CRADLE,INSTALLATION JIG,COUNTERM.
CRADLE,INSTALLATION JIG,COUNTERM. Key specifications include material: STEEL COMP 303, head_style: FLAT COUNTERSUNK, thread_class: 2A A, core_diameter: 0.063 INCHES NOMINAL IN, core_material: STEEL, head_diameter: 0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-012-0657, 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 303 |
| head_style | FLAT COUNTERSUNK |
| thread_class | 2A A |
| core_diameter | 0.063 INCHES NOMINAL IN |
| core_material | STEEL |
| head_diameter | 0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| step_quantity | 3 |
| thread_length | 1.000 INCHES MAXIMUM IN |
| end_similarity | NOT IDENTICAL |
| overall_length | 1.7250 INCHES NOMINAL IN |
| screw_material | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| fastener_length | 1.000 INCHES NOMINAL IN |
| NSN | 5305-00-012-0657 |
| SCREW SURFACE TREATMENT | CADMIUM OR ZINC |
| FASTENER LENGTH | 1.000 INCHES NOMINAL IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES |
| THREAD LENGTH | 1.000 INCHES MAXIMUM IN |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| NONDEFINITIVE SPEC/STD DATA | 2S STYLE AND 1 TYPE |
| SCREW MATERIAL | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| INTERNAL DRIVE STYLE | SLOT |