National Item Identification Number
00-246-7440
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)
81616
YORK INDUSTRIES INC.
706 WILLOW SPRINGS LANE
YORK
PA
17402
717-764-8855
Reference Numbers (Part Numbers)
X803731PC4
299624PC4
Required Categories
MATERIAL
HARDNESS RATING
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMET
Required Description
PLASTIC OVERALL
88.0 ROCKWELL M MINIMUM AND
117.0 ROCKWELL M MAXIMUM
0.166 IN