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 5895-00-644-5712
NSN 4140-01-231-5031
NSN 5855-01-564-0112
NSN 6220-00-826-7002
NSN 6620-00-193-9503
NSN 6645-01-372-9464
NSN 4140-01-516-3769
NSN 5965-01-573-1191
NSN 6135-01-417-6539
NSN 5895-01-462-5663
NSN 5996-01-166-8416
NSN 5960-01-339-3037