20mm id x 37mm od din 6916 structural 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: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5975-01-645-3946
NSN 5935-00-243-8752
NSN 2925-01-416-6927
NSN 5905-00-170-8370
NSN 5965-00-670-2931
NSN 5910-01-440-2318
NSN 6240-01-312-2061
NSN 5935-01-594-3702
NSN 5895-00-553-8345
NSN 6110-01-467-1077
NSN 5910-01-559-6638
NSN 6620-01-498-4780