The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.100 INCHES NOMINAL IN, hole_diameter: 0.531 INCHES NOMINAL IN, overall_diameter: 1.250 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-174-9497, 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 OVERALL |
| thickness | 0.100 INCHES NOMINAL IN |
| hole_diameter | 0.531 INCHES NOMINAL IN |
| overall_diameter | 1.250 INCHES NOMINAL IN |
| surface_treatment | ZINC OVERALL |
| peripheral_shape_style | ROUND |
| center_hole_shape_style | ROUND |
| end_item_identification | 2590-01-551-7979, HOIST UNIT,HYDRAULIC,VEHICULAR BODY |
| cross-sectional_shape_style | RECTANGULAR |
| material_document_and_classification | ASTM F 436. TY I ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| part_name_assigned_by_controlling_agency | WASHER, PLAIN, TYPE B |
| surface_treatment_document_and_classification | ASTM B 633, TY II. SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| NSN | 5306-00-174-9497 |
| FASTENER LENGTH | 1.500 INCHES NOMINAL IN |
| NOMINAL THREAD DIAMETER | 0.625 INCHES IN |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES MINIMUM IN |
| HEAD STYLE | HEXAGON |
| FEATURES PROVIDED | FINISHED HEAD |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 2 GRADE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY 1,CL FE/ZN 8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |