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: Washers other than lock washers, iron or steel
NSN 5990-01-388-0252
NSN 4140-01-538-9660
NSN 2925-00-596-9775
NSN 4140-01-250-1128
NSN 5960-00-878-6030
NSN 5965-01-136-7970
NSN 6645-01-478-2140
NSN 5920-00-373-3636
NSN 6645-01-454-4187
NSN 5990-01-416-0362
NSN 5996-00-935-2647
NSN 6145-01-525-7611