National Item Identification Number
01-290-2218
National Stock Number
Item Name
WASHER,FLAT
Federal Supply Class
5310
Description
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.
Commercial and Government Entity Code (Supplier Data)
13226
BETTS INDUSTRIES INC
1800 PENNSYLVANIA AVE W
888
WARREN
PA
16365
814-723-1250
49632
HEIL CO THE
MIDWEST PARTS CENTER
3808 BELLS LN
LOUISVILLE
KY
40211
502-778-2300
13226
BETTS INDUSTRIES INC
1800 PENNSYLVANIA AVE W
888
WARREN
PA
16365
814-723-1250
Reference Numbers (Part Numbers)
3031CP
3031CP
3031ZC
Required Categories
Required Description