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 5855-01-346-7682
NSN 4140-01-494-0339
NSN 5905-01-537-8242
NSN 6685-01-312-4445
NSN 6105-01-295-7401
NSN 6620-00-006-6418
NSN 6105-01-207-6045
NSN 4140-00-854-8871
NSN 6105-01-371-3045
NSN 2925-01-570-3690
NSN 5960-00-140-9583
NSN 6620-00-936-3463