National Item Identification Number
01-446-3195
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)
25685
NAVAL SHIP ENGINEERING CENTER
PHILADELPHIA DIVISION
PHILADELPHIA
PA
19112
215-226-6858
D9182
2V507
MC MASTER-CARR SUPPLY COMPANY
473 RIDGE RD
DAYTON
NJ
08810
732-329-3200
Reference Numbers (Part Numbers)
SK9716-130 ITEM NO.19
90107A037
90107A037
Required Categories
Required Description