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 5930-01-642-9998
NSN 5925-00-188-8193
NSN 6110-01-289-1284
NSN 6610-01-103-4568
NSN 5975-01-050-5728
NSN 5910-01-367-6155
NSN 5915-01-467-0735
NSN 5990-01-328-9846
NSN 5905-00-480-2899
NSN 6320-00-521-9350
NSN 5960-01-135-5639
NSN 5990-01-229-3003