NAS1189E4P23: SCREW,CAP,SOCKET HEAD.
The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.442 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN, thread_length: 1.261 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-143-9191, 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 | FLAT COUNTERSUNK |
| thread_class | 3A A |
| head_diameter | 0.442 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN |
| thread_length | 1.261 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN |
| surface_finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| fastener_length | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| locking_feature | STRIP OR PELLET OR PATCH THREADS |
| thread_direction | RIGHT-HAND |
| countersink_angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| surface_treatment | PASSIVATE OVERALL |
| internal_drive_style | CROSS RECESS TYPE 1 |
| NSN | 5305-01-143-9191 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| FASTENER LENGTH | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 1.261 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIFICATION/STANDARD DATA | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |