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 5975-00-873-3002
NSN 5910-00-281-0148
NSN 5895-01-522-3475
NSN 7035-00-585-2113
NSN 5965-01-425-1347
NSN 5950-01-508-4244
NSN 5985-01-445-6667
NSN 5985-01-298-6863
NSN 6220-00-156-4469
NSN 2925-01-525-8212
NSN 6130-01-076-5968
NSN 5996-01-498-1358