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 5985-01-513-4983
NSN 6145-00-283-3682
NSN 5895-01-176-2283
NSN 6620-01-391-7331
NSN 5950-01-631-2856
NSN 6220-00-285-5786
NSN 2925-01-565-6410
NSN 4140-01-098-0213
NSN 6150-01-466-3237
NSN 6130-00-480-9066
NSN 6685-01-411-6956
NSN 6105-01-568-4819