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 2925-01-142-0981
NSN 5950-00-856-1300
NSN 6620-00-280-2874
NSN 6685-01-549-3775
NSN 5915-00-984-0414
NSN 5965-01-082-3757
NSN 5855-01-327-2681
NSN 5996-01-112-0154
NSN 4140-00-757-3047
NSN 6150-00-062-2915
NSN 5930-01-123-2301
NSN 5996-01-398-1632