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 5915-01-026-0422
NSN 5895-01-301-4045
NSN 6240-00-454-9293
NSN 6610-00-614-7943
NSN 5996-01-328-4647
NSN 6220-00-326-9144
NSN 5965-01-653-0088
NSN 6685-01-117-1968
NSN 5990-00-258-0228
NSN 5930-00-979-9034
NSN 6650-00-796-9972
NSN 5915-00-998-5734