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 5985-01-510-9554
NSN 5925-00-355-6124
NSN 4140-00-128-8072
NSN 6145-01-310-8597
NSN 6685-00-160-6390
NSN 4140-01-612-5186
NSN 5975-01-493-7476
NSN 6130-00-235-6936
NSN 5950-01-111-7695
NSN 5905-01-476-9668
NSN 5925-00-525-4037
NSN 6105-01-211-5451