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 4140-01-323-4279
NSN 5998-01-565-5778
NSN 6685-01-463-9153
NSN 6320-01-608-1935
NSN 5996-01-443-5617
NSN 6150-01-417-2643
NSN 5925-00-713-2646
NSN 5945-00-814-2219
NSN 5965-01-373-1412
NSN 6620-00-448-6442
NSN 5975-00-062-7760
NSN 5895-01-442-8459