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.
Norway Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6220-01-037-6558
NSN 6685-01-113-8005
NSN 6320-01-643-0850
NSN 6110-01-567-8251
NSN 6650-01-570-4795
NSN 6620-00-317-7820
NSN 6620-01-029-3705
NSN 5975-01-308-8043
NSN 6610-01-549-8006
NSN 5975-00-098-5464
NSN 6105-01-168-8335
NSN 6150-00-205-4276