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 5975-01-515-5079
NSN 5910-01-372-7118
NSN 5990-00-226-1152
NSN 6145-01-025-7857
NSN 5930-00-554-9358
NSN 2925-01-197-7864
NSN 5975-00-677-8908
NSN 5910-00-663-5865
NSN 6645-01-158-3592
NSN 5985-01-197-8983
NSN 6135-00-078-9931
NSN 6150-01-370-1270