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: Washers other than lock washers, iron or steel
NSN 4140-01-231-8578
NSN 5999-00-386-1029
NSN 5920-01-141-6885
NSN 6150-01-327-4709
NSN 5975-01-590-0923
NSN 6220-00-397-6910
NSN 6645-01-160-7707
NSN 5998-01-504-2634
NSN 6320-00-521-9350
NSN 6645-01-243-0468
NSN 6645-01-431-0732
NSN 5855-01-442-6840