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.
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NATO Maintenance and Supply Agency Classification: Washers other than lock washers, iron or steel
NSN 5999-01-121-9080
NSN 5990-01-012-6358
NSN 5915-01-156-1160
NSN 6320-00-360-1744
NSN 6130-01-110-3881
NSN 5855-01-314-8335
NSN 5895-01-299-2953
NSN 6110-00-031-7299
NSN 5985-01-247-2446
NSN 6645-01-116-9634
NSN 5835-01-247-2634
NSN 5835-00-841-2650