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 5975-01-441-9221
NSN 6135-01-372-6985
NSN 6620-01-064-0366
NSN 5935-00-041-3685
NSN 6105-00-026-9909
NSN 5998-00-025-5574
NSN 5935-00-058-1741
NSN 7035-00-166-0339
NSN 6135-00-764-8680
NSN 5950-00-035-8791
NSN 5925-01-056-5127
NSN 6650-01-514-0240