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 6620-01-616-0184
NSN 5930-01-259-9976
NSN 6685-00-444-6500
NSN 5990-00-892-1606
NSN 6645-01-621-8564
NSN 6105-01-411-5970
NSN 5930-00-350-6008
NSN 5925-00-910-3594
NSN 6220-00-116-8464
NSN 5960-01-054-9639
NSN 5930-01-415-1157
NSN 5985-00-090-6349