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 2925-01-259-0785
NSN 6685-01-528-6740
NSN 6610-00-155-1334
NSN 5925-00-420-1386
NSN 5950-01-347-8401
NSN 6620-01-091-8413
NSN 6220-00-489-8571
NSN 5920-01-549-5277
NSN 6645-00-330-2813
NSN 5998-01-155-0174
NSN 5915-01-548-7478
NSN 5910-01-090-4856