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 4140-01-200-3265
NSN 5998-01-588-0815
NSN 5999-01-151-1700
NSN 5998-01-100-3919
NSN 6645-00-200-2322
NSN 5950-01-312-4650
NSN 5920-00-936-7293
NSN 5990-01-514-8030
NSN 6110-01-171-6238
NSN 6150-01-339-7854
NSN 5950-01-252-8905
NSN 5925-01-422-0431