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 5935-00-866-4921
NSN 5920-00-151-4039
NSN 5996-01-209-3164
NSN 6240-00-357-7976
NSN 5975-00-836-9160
NSN 6645-01-510-3496
NSN 6145-00-299-6258
NSN 5930-00-700-9190
NSN 5950-01-555-6908
NSN 5925-01-308-4031
NSN 5996-01-521-9272
NSN 5935-01-364-6934