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 4140-01-144-5179
NSN 6610-01-415-1623
NSN 5905-00-921-5252
NSN 5999-01-546-9114
NSN 5895-01-584-2646
NSN 5985-01-376-5429
NSN 5930-01-479-5536
NSN 5965-01-383-4675
NSN 6610-01-642-9557
NSN 5835-01-629-2044
NSN 5999-01-014-5981
NSN 5999-01-019-2143