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 5990-01-179-1000
NSN 5910-01-531-3096
NSN 5920-00-793-8406
NSN 6145-00-267-0853
NSN 4140-01-578-9005
NSN 4140-01-188-8160
NSN 6130-01-281-7268
NSN 6105-01-266-9085
NSN 6645-01-400-2119
NSN 6145-01-288-6692
NSN 5998-01-609-8923
NSN 5855-00-933-9978