NAS1189E4P10: 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, head_diameter: 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, thread_length: 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES THREADS, fastener_length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-01-027-4553, 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 |
| head_diameter | 0.491 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| thread_length | 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| surface_finish | 32.0 MICROINCHES THREADS |
| fastener_length | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| hardness_rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| locking_feature | PATCH OR STRIP THREADS |
| countersink_angle | 100.0 DEGREES NOMINAL |
| surface_treatment | PASSIVATE OVERALL |
| internal_drive_style | CROSS RECESS TYPE 1 |
| nominal_thread_diameter | 0.250 INCHES IN |
| NSN | 5305-01-027-4553 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 125.0 MICROINCHES TOP OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| FASTENER LENGTH | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THREAD LENGTH | 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7478 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES IN |
| HEAD STYLE | FLAT COUNTERSUNK |
No substitute or cross-reference records for this part.