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 6220-01-201-4117
NSN 5950-00-689-5819
NSN 6105-01-173-6972
NSN 5990-01-249-8212
NSN 6320-00-405-2348
NSN 5985-00-840-4635
NSN 6145-01-556-8015
NSN 5960-01-326-8986
NSN 6105-00-359-9243
NSN 6150-01-459-8026
NSN 5925-01-393-9839
NSN 5930-00-001-3233