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 4140-01-172-3380
NSN 5998-01-268-2300
NSN 5965-00-679-9501
NSN 5990-01-373-9992
NSN 5950-00-837-3083
NSN 6620-01-328-9862
NSN 5975-01-656-7758
NSN 6645-00-318-2828
NSN 5996-01-547-3452
NSN 6150-00-860-0538
NSN 5996-00-471-0540
NSN 5950-00-014-6534