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 6150-01-077-7839
NSN 6650-00-369-4429
NSN 5895-01-349-4331
NSN 6150-01-164-5237
NSN 5999-01-166-8172
NSN 5905-01-444-5236
NSN 6105-01-212-9245
NSN 6645-01-120-7135
NSN 6110-01-439-5212
NSN 6620-01-559-1921
NSN 6150-01-539-8671
NSN 5945-01-109-7324