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 5930-01-010-2947
NSN 5915-01-145-2148
NSN 5996-01-446-0568
NSN 5945-01-152-2780
NSN 6685-01-461-3223
NSN 5960-01-481-3722
NSN 4140-01-158-4139
NSN 5990-01-286-0601
NSN 6240-01-006-7279
NSN 6135-00-100-0485
NSN 6220-00-643-4045
NSN 6105-01-215-1174