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 6650-01-502-8629
NSN 5998-01-019-7283
NSN 6620-00-880-7728
NSN 5950-01-122-8794
NSN 5905-00-411-1270
NSN 6685-01-312-8561
NSN 5975-00-771-6691
NSN 6135-01-391-6515
NSN 7035-00-834-2090
NSN 5996-01-284-3572
NSN 6135-00-269-5843
NSN 5998-01-084-7037