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 5905-00-498-3641
NSN 5935-00-862-6660
NSN 5990-01-161-4625
NSN 5996-00-411-7119
NSN 6220-01-198-7217
NSN 5925-00-456-0651
NSN 4140-01-559-0846
NSN 4140-00-640-6811
NSN 5855-01-423-0817
NSN 7035-01-416-5910
NSN 6130-01-308-7643
NSN 5925-01-056-3546