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 6135-01-413-4747
NSN 5985-00-177-3633
NSN 6150-01-235-3383
NSN 5990-00-565-9027
NSN 6110-01-296-9779
NSN 6685-00-113-8949
NSN 5990-01-421-5342
NSN 5998-01-025-9799
NSN 6135-00-209-6918
NSN 2925-01-154-2949
NSN 6620-01-423-0833
NSN 5835-01-495-0595