Hardness rating, not req'd
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.
NSN 5935-01-657-6341
NSN 4140-00-115-0830
NSN 5930-00-982-4712
NSN 6150-01-159-3315
NSN 5990-00-503-4724
NSN 5920-01-401-5315
NSN 5975-01-275-2767
NSN 7035-01-538-3665
NSN 6105-00-156-4312
NSN 5915-00-364-3650
NSN 5915-01-228-5663
NSN 5905-00-660-9105