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: Cotters, cotter-pins, washers and similar articles, of aluminum
NSN 5895-01-235-1055
NSN 6105-01-517-8202
NSN 5990-01-378-7349
NSN 5950-01-556-7989
NSN 5965-01-055-7645
NSN 5975-00-394-2545
NSN 6150-01-442-9847
NSN 5945-01-216-7261
NSN 6150-01-487-6823
NSN 5999-01-437-4051
NSN 6110-00-521-1782
NSN 6645-01-573-7603