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 6220-00-508-9155
NSN 6150-01-420-4566
NSN 5930-01-361-0116
NSN 6650-01-660-3151
NSN 6620-00-922-6246
NSN 6620-01-174-0308
NSN 5985-00-928-8242
NSN 6645-00-451-6462
NSN 5960-01-415-3574
NSN 5996-00-150-8842
NSN 5990-01-332-3623
NSN 4140-01-378-6710