National Item Identification Number
01-444-7372
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)
2W138
AWS INDUSTRIES INC
DBA TOMAK PRECISION
2600 HENKLE DR
LEBANON
OH
45036
513-932-7941
82782
MOSLER INC
8509 BERK BLVD
HAMILTON
OH
45015
513-682-6200
Reference Numbers (Part Numbers)
A-510026
A-510026
Required Categories
MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S
Required Description
COPPER ALLOY 510 OVERALL
0.600 INCHES MINIMUM AND
0.610 INCHES MAXIMUM
1 ROUN
