A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 6620-00-724-1268
NSN 6130-01-508-6422
NSN 5975-01-371-2875
NSN 2925-01-113-6904
NSN 5920-01-526-2499
NSN 6320-00-270-8222
NSN 5910-01-132-3245
NSN 6685-01-501-3970
NSN 6150-00-728-9764
NSN 5930-00-240-7895
NSN 5915-01-577-6708
NSN 5990-01-222-8570