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 5999-01-078-4830
NSN 5945-01-585-3443
NSN 7035-01-481-2110
NSN 5990-00-263-1289
NSN 5999-01-226-4230
NSN 5945-00-160-3859
NSN 6685-00-203-4485
NSN 6220-00-581-3858
NSN 5985-01-061-7576
NSN 6135-00-488-4478
NSN 6620-00-053-9567
NSN 5930-01-178-0937