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 5930-01-601-0042
NSN 6645-01-123-9277
NSN 6650-01-466-9503
NSN 6110-01-021-6189
NSN 5895-01-446-6768
NSN 6685-00-756-1662
NSN 5925-00-803-5491
NSN 5935-01-313-3260
NSN 5910-01-626-3216
NSN 7035-00-059-7970
NSN 5998-01-014-1008
NSN 6220-01-319-8218