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 7035-01-213-5590
NSN 5910-01-400-4077
NSN 5925-01-437-8542
NSN 4140-01-074-6262
NSN 5935-01-218-4577
NSN 5990-01-100-7231
NSN 6610-00-647-3830
NSN 5998-01-624-5936
NSN 6145-01-414-0271
NSN 5985-00-374-1062
NSN 6150-01-532-3376
NSN 6135-00-461-3590