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 4140-00-184-4812
NSN 5910-01-196-6153
NSN 6645-00-812-5243
NSN 6220-01-377-9133
NSN 6610-00-500-6944
NSN 5930-00-277-4704
NSN 6610-01-100-3662
NSN 6685-01-444-1496
NSN 5910-00-728-9340
NSN 5985-00-717-6508
NSN 5935-01-186-0804
NSN 6130-01-290-8074