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: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 5920-01-139-1221
NSN 5905-00-170-8113
NSN 6145-00-427-7201
NSN 6220-00-339-1310
NSN 7035-00-455-7666
NSN 6220-01-161-8199
NSN 7035-01-435-7962
NSN 5999-01-391-5646
NSN 6645-01-399-0661
NSN 6105-00-985-2294
NSN 6610-01-559-5073
NSN 5925-01-567-2312