Number 12, 0.216 wide type b flat washer
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 5855-01-369-5037
NSN 5960-01-013-9346
NSN 5960-00-881-0423
NSN 6610-01-168-7943
NSN 5990-00-932-3070
NSN 5950-01-378-5286
NSN 6110-01-437-3174
NSN 5915-01-228-5663
NSN 5835-01-203-1871
NSN 5998-01-431-8697
NSN 5910-01-212-1887
NSN 6130-01-399-0126