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 5999-01-239-8144
NSN 5990-00-821-6257
NSN 5996-01-155-2467
NSN 5998-01-107-4890
NSN 5905-01-160-1087
NSN 6150-00-596-8766
NSN 5895-01-267-5250
NSN 5925-01-449-9760
NSN 6130-01-543-1742
NSN 5960-01-468-6508
NSN 4140-00-420-0251
NSN 2925-01-570-2562