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 6220-00-931-8837
NSN 5975-01-365-5209
NSN 6145-00-006-4954
NSN 5985-00-934-9694
NSN 2925-01-193-6689
NSN 6220-01-059-1393
NSN 6320-01-144-3810
NSN 5910-01-425-1773
NSN 5930-01-577-8780
NSN 5910-01-575-4033
NSN 6320-01-240-4637
NSN 2925-00-510-8122