National Item Identification Number
01-499-3501
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)
2J641
DH INSTRUMENTS INC
4765 E BEAUTIFUL LN
PHOENIX
AZ
85044
602-431-9400
3L891
STANDARD BOLT NUT AND SCREW CO
3838 E GROVE ST
PHOENIX
AZ
85040
602-437-0551
Reference Numbers (Part Numbers)
102721-Z
30NWSFN
Required Categories
Required Description
