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 5960-01-578-5537
NSN 4140-01-041-8140
NSN 6240-01-627-6936
NSN 6650-01-419-0286
NSN 5855-00-991-0096
NSN 6685-01-516-7112
NSN 5835-01-341-7446
NSN 5935-01-505-1532
NSN 7035-01-617-5183
NSN 5930-00-900-3553
NSN 5935-01-485-1188
NSN 5960-01-411-5899