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 5935-00-597-5055
NSN 5950-01-609-3521
NSN 5835-00-631-5762
NSN 5920-01-557-4500
NSN 6645-00-095-6956
NSN 5915-01-361-9026
NSN 4140-01-503-7424
NSN 5985-01-360-1429
NSN 5915-00-189-1706
NSN 6685-00-762-5917
NSN 6150-00-153-3196
NSN 4140-01-060-2960