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: Copper washers including spring washers not threaded
NSN 5990-01-181-4143
NSN 6645-01-455-1293
NSN 5920-01-634-0250
NSN 6645-01-565-6973
NSN 5999-00-170-7858
NSN 5935-00-434-7587
NSN 6220-00-368-4945
NSN 5930-00-577-8859
NSN 5895-01-367-9483
NSN 5945-00-983-5984
NSN 5925-01-026-9649
NSN 6320-00-242-3300