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 6150-00-453-6158
NSN 5975-00-541-8531
NSN 5835-01-197-0390
NSN 5925-01-505-3478
NSN 5895-00-278-8092
NSN 5985-01-185-2567
NSN 6145-01-100-4921
NSN 5975-00-306-4688
NSN 5996-01-417-3139
NSN 6620-00-518-3595
NSN 5998-00-504-5468
NSN 5999-01-034-5443