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 6135-01-617-0253
NSN 5835-01-455-0607
NSN 6650-01-624-4360
NSN 6240-01-475-2642
NSN 5950-01-342-9062
NSN 7035-00-104-7613
NSN 5945-00-879-3995
NSN 5965-01-168-8180
NSN 6135-00-377-9165
NSN 5999-01-505-6096
NSN 5996-00-146-9746
NSN 6320-00-538-2132