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 4140-01-248-9116
NSN 6150-00-145-5206
NSN 6145-00-087-7691
NSN 5855-00-237-4088
NSN 5895-01-389-3098
NSN 6645-01-386-6311
NSN 5935-00-520-3651
NSN 6645-00-287-9192
NSN 5930-00-003-8483
NSN 5935-01-505-6697
NSN 5998-01-186-6293
NSN 5999-00-364-7870