National Item Identification Number
01-280-7812
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)
18740
YALE INDUSTRIAL PRODUCTS INC
DBA DUFF-NORTON
9415 PIONEER AVE
7425
CHARLOTTE
NC
28273
704-588-0510
80735
COLUMBUS MCKINNON CORP
DBA CHESTER HOIST
7573 STATE ROUTE 45
449
LISBON
OH
44432
330-424-7248
18740
YALE INDUSTRIAL PRODUCTS INC
DBA DUFF-NORTON
9415 PIONEER AVE
7425
CHARLOTTE
NC
28273
704-588-0510
Reference Numbers (Part Numbers)
PB-293
PB-293
WR-3-680-1 FIG 7-8A INDEX NO 16
Required Categories
Required Description