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: Copper washers including spring washers not threaded
NSN 5945-00-729-3403
NSN 5950-00-530-7273
NSN 4140-00-653-5245
NSN 6150-01-291-4100
NSN 5905-01-012-2520
NSN 5915-00-636-9785
NSN 2925-00-540-9918
NSN 6135-00-921-6487
NSN 6320-01-160-7757
NSN 6130-01-371-6282
NSN 6620-00-752-8777
NSN 5999-01-167-7522