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 5960-01-027-1835
NSN 5990-01-089-6743
NSN 5999-00-419-6202
NSN 5999-00-785-5460
NSN 6150-01-215-3655
NSN 6650-00-535-6923
NSN 5960-01-340-4487
NSN 6320-00-731-6134
NSN 5990-01-282-4617
NSN 5910-01-421-0769
NSN 6620-01-524-9112
NSN 5910-01-202-8330