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 5855-00-560-0110
NSN 6135-01-313-8323
NSN 6130-00-274-8411
NSN 6110-01-227-3055
NSN 5999-00-464-0516
NSN 6240-00-316-3167
NSN 2925-00-265-7539
NSN 5895-00-402-3549
NSN 2925-01-134-9175
NSN 5960-01-385-4333
NSN 6645-01-585-6866
NSN 2925-01-437-9041