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 4140-01-592-3151
NSN 5965-01-518-9931
NSN 6650-01-329-8020
NSN 6685-01-434-6431
NSN 6320-01-287-5345
NSN 6110-01-497-5753
NSN 7035-01-551-1240
NSN 6105-00-890-8149
NSN 5895-01-502-6988
NSN 6135-00-196-5267
NSN 6240-00-057-6314
NSN 6610-00-225-9886