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 6145-01-387-9473
NSN 5935-01-461-8480
NSN 6105-01-256-2457
NSN 6685-01-257-7223
NSN 5960-00-548-9823
NSN 5998-01-206-9975
NSN 5990-01-004-6343
NSN 6610-00-625-6035
NSN 6135-00-228-8140
NSN 4140-00-269-5795
NSN 5915-01-538-3382
NSN 5910-00-589-5193