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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 4140-01-539-5410
NSN 4140-01-598-6898
NSN 5999-01-460-6652
NSN 5990-01-544-0364
NSN 5910-01-361-8864
NSN 5960-01-106-3086
NSN 5935-00-866-3441
NSN 5895-01-462-5749
NSN 6240-01-228-9595
NSN 5930-00-212-7435
NSN 6645-01-318-7371
NSN 7035-01-010-4257