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 5855-01-027-1571
NSN 5965-00-144-2543
NSN 6685-01-388-4061
NSN 5925-00-708-8769
NSN 5985-00-989-7578
NSN 5990-00-254-4825
NSN 5965-01-310-5695
NSN 5950-01-105-8414
NSN 5999-00-973-6891
NSN 5996-01-106-7328
NSN 6240-01-142-2963
NSN 6135-01-026-9960