The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.060 INCHES NOMINAL IN, hole_diameter: 0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN, hardness_rating: 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM, overall_diameter: 0.875 MILLIMETERS NOMINAL MM, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-000-0079, 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 | 0.060 INCHES NOMINAL IN |
| hole_diameter | 0.500 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| hardness_rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| overall_diameter | 0.875 MILLIMETERS NOMINAL MM |
| surface_treatment | ZINC OVERALL |
| peripheral_shape_style | ROUND |
| center_hole_shape_style | ROUND |
| end_item_identification | MEDIUM MINE PROTECTED VEHICLE - MMPV; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE |
| cross-sectional_shape_style | BLANK RECTANGULAR |
| part_name_assigned_by_controlling_agency | WASHER, FLAT METAL, ROUND, HARDENED |
| surface_treatment_document_and_classification | ASTM B633, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| NSN | 5310-00-000-0079 |
| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| END ITEM IDENTIFICATION | ARMORED MULTI-PURPOSE VEHICLE (AMPV); MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, FLAT METAL, ROUND HARDENED |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL |
| THICKNESS | 0.151 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| PERIPHERAL SHAPE STYLE | ROUND |
| HOLE DIAMETER | 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| OVERALL DIAMETER | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |