181591: 181591.
The 181591 is a the manufacturer industrial component. Key specifications include material: PLASTIC DIALLYL PHTHALATE, body_style: DISK, overall_height: 0.120 INCHES NOMINAL IN, overall_diameter: 0.250 INCHES NOMINAL IN, specification/standard_data: 58536-A-A-55485/1 GOVERNMENT SPECIFICATION, unthreaded_mounting_hole_diameter: 0.028 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-018-1591, 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 | PLASTIC DIALLYL PHTHALATE |
| body_style | DISK |
| overall_height | 0.120 INCHES NOMINAL IN |
| overall_diameter | 0.250 INCHES NOMINAL IN |
| specification/standard_data | 58536-A-A-55485/1 GOVERNMENT SPECIFICATION |
| unthreaded_mounting_hole_diameter | 0.028 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| mounting_facility_type_and_quantity | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| NSN | 5306-00-018-1591 |
| HEAD HEIGHT | 0.203 INCHES NOMINAL IN |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| THREAD LENGTH | 0.500 INCHES MAXIMUM IN |
| HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.312 INCHES IN |
| FEATURES PROVIDED | FINISHED HEAD |
| HEAD STYLE | HEXAGON |
| WIDTH BETWEEN FLATS | 0.500 INCHES NOMINAL IN |
| SURFACE TREATMENT | CADMIUM OR ZINC OVERALL |