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 5905-01-178-9490
NSN 6135-01-222-5464
NSN 5950-00-103-6456
NSN 6150-01-602-2834
NSN 5999-01-537-7090
NSN 5835-00-909-8088
NSN 6150-00-859-6815
NSN 5990-01-243-4233
NSN 6105-01-413-5255
NSN 5950-01-413-6043
NSN 6650-00-705-0269
NSN 5945-00-900-8991