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 5925-00-173-7159
NSN 4140-01-510-3984
NSN 5998-01-110-2637
NSN 6620-00-511-3355
NSN 5975-01-544-6444
NSN 6220-00-215-6358
NSN 5985-00-688-3958
NSN 6620-01-595-1060
NSN 5999-01-496-5546
NSN 5975-01-014-6161
NSN 5930-00-269-4996
NSN 5910-01-135-4030