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 6645-01-380-5360
NSN 6110-01-171-4595
NSN 6150-01-100-9519
NSN 5925-01-395-4930
NSN 6105-01-537-4002
NSN 6685-01-294-3496
NSN 5975-00-015-6012
NSN 6320-01-233-5798
NSN 2925-01-071-9291
NSN 6620-01-070-9042
NSN 5895-01-532-6244
NSN 6220-01-241-4625