Temper t4
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 6130-01-421-6864
NSN 5998-01-612-9082
NSN 5985-01-237-2570
NSN 6240-01-444-9956
NSN 6610-00-729-5130
NSN 5895-00-702-4045
NSN 6145-01-166-2652
NSN 5996-01-201-6170
NSN 5905-01-510-9397
NSN 6645-01-344-7117
NSN 5965-01-388-1379
NSN 5835-01-325-5677