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 6130-01-474-4309
NSN 6145-01-452-7890
NSN 6135-00-767-0331
NSN 5975-00-817-4476
NSN 5905-01-327-2712
NSN 5996-01-141-6916
NSN 5960-00-546-7533
NSN 6150-00-090-6982
NSN 5998-01-385-3237
NSN 6645-01-556-5263
NSN 6135-01-337-9315
NSN 5965-00-497-4521