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 6685-00-634-9964
NSN 6110-00-719-7209
NSN 6145-01-273-2852
NSN 5855-01-388-2424
NSN 6610-01-527-8006
NSN 5975-01-631-4222
NSN 5895-00-225-9589
NSN 6220-01-090-0126
NSN 6620-00-708-3323
NSN 5999-00-027-1739
NSN 5925-01-105-3914
NSN 5895-01-577-0229