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 5990-01-287-9447
NSN 2925-01-411-8002
NSN 6110-01-328-9164
NSN 5998-01-254-3455
NSN 5999-01-106-3808
NSN 6105-01-203-5094
NSN 5998-01-193-8132
NSN 4140-01-337-0495
NSN 5930-01-151-4991
NSN 6685-01-145-5941
NSN 5905-01-065-7958
NSN 6650-00-336-0753