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 2925-00-343-3235
NSN 5965-01-309-1084
NSN 5905-00-925-2851
NSN 6145-01-391-5148
NSN 5945-01-073-5487
NSN 5945-00-828-2541
NSN 6685-00-619-9860
NSN 6645-00-813-3084
NSN 5998-01-447-2623
NSN 6620-01-207-0667
NSN 6150-01-059-9507
NSN 6220-01-104-1447