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 5965-00-538-4485
NSN 5920-00-131-3226
NSN 5905-01-480-6346
NSN 6650-00-680-9595
NSN 5950-00-216-7548
NSN 5910-01-557-8323
NSN 4140-01-164-1192
NSN 6110-01-576-8832
NSN 5925-01-014-4779
NSN 5960-01-381-2478
NSN 6620-00-834-7502
NSN 5910-01-594-6577