Stock is cold rolled 301 cres, one-half hard, 150 ksi tensile strength, 2b finish; 18cr - 8ni (sae 30301); fits no. 2 screw
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: Washers other than lock washers, iron or steel
NSN 6610-00-273-9019
NSN 6135-00-170-8819
NSN 6685-01-473-1997
NSN 5950-01-642-0916
NSN 5950-01-522-4324
NSN 5930-01-512-4645
NSN 5975-01-081-6836
NSN 5960-01-558-7787
NSN 5930-01-359-4133
NSN 6145-01-461-4852
NSN 7035-01-341-9098
NSN 5930-01-004-1423