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.
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NATO Maintenance and Supply Agency Classification: Washers other than lock washers, iron or steel
NSN 6130-01-100-3830
NSN 5950-00-946-3160
NSN 6240-01-645-4797
NSN 2925-00-295-8109
NSN 6220-01-333-1319
NSN 5835-01-150-6084
NSN 5960-01-165-1956
NSN 6145-00-455-7237
NSN 5950-00-283-4491
NSN 5925-01-211-6660
NSN 6145-00-406-4471
NSN 5950-00-089-8781