The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN, hole_diameter: 0.470 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES BOTTOM, hardness_rating: 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM, overall_diameter: 0.670 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-054-5641, 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 CORROSION RESISTING OVERALL |
| thickness | 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN |
| hole_diameter | 0.470 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN |
| surface_finish | 63.0 MICROINCHES BOTTOM |
| hardness_rating | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| overall_diameter | 0.670 INCHES NOMINAL IN |
| peripheral_shape_style | ROUND |
| center_hole_shape_style | ROUND W/FLATS |
| hole_width_across_flats | 0.425 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| cross-sectional_shape_style | RECTANGULAR |
| material_document_and_classification | AMS5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| NSN | 5305-00-054-5641 |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| HEAD DIAMETER | 0.155 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN |
| THREAD LENGTH | 0.464 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES |
| THREAD QUANTITY PER INCH | 56 |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SCREW MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 |
| NOMINAL THREAD DIAMETER | 0.086 INCHES IN |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |