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 6645-01-318-7371
NSN 6645-01-454-7038
NSN 7035-01-429-7954
NSN 5925-00-564-3712
NSN 5999-00-185-6032
NSN 6150-01-592-8953
NSN 5950-01-377-5879
NSN 5905-01-461-3065
NSN 2925-01-283-6740
NSN 6610-01-398-2554
NSN 5975-01-222-3631
NSN 5835-01-302-6844