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 2925-00-137-5120
NSN 6620-01-160-8517
NSN 6650-01-013-9334
NSN 5905-01-336-2237
NSN 5985-01-603-0657
NSN 6620-01-505-3496
NSN 6645-01-322-5644
NSN 6240-00-334-6766
NSN 6685-00-237-1202
NSN 6110-00-185-2021
NSN 6105-00-195-7065
NSN 5930-00-442-3618