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 6620-01-146-4680
NSN 5910-01-301-2246
NSN 6130-00-153-3136
NSN 5905-00-728-2699
NSN 6645-00-837-2267
NSN 5950-01-407-3766
NSN 4140-00-836-6319
NSN 7035-01-227-2546
NSN 5996-01-362-9732
NSN 5915-01-206-2851
NSN 5925-01-336-8448
NSN 5930-01-128-3238