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 6135-01-271-7151
NSN 5975-01-110-7686
NSN 6650-01-296-0883
NSN 5960-00-549-3760
NSN 5855-01-077-6264
NSN 2925-00-802-9387
NSN 6620-00-458-3670
NSN 6685-00-113-1888
NSN 6135-01-536-4810
NSN 6620-01-209-6909
NSN 4140-00-411-6848
NSN 5935-01-045-6176