National Item Identification Number
National Stock Number
Federal Supply Class
A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see GASKET. For items manufactured from lubricated plastics, see BEARING, WASHER, THRUST. For items manufactured from lubricated felt, see FELT, MECHANICAL, PREFORMED. Excludes DISK, VALVE; INSULATOR WASHER; and SHIM. See also SPACER, PLATE and SPACER, SLEEVE.
Commercial and Government Entity Code (Supplier Data)
AMERICAN METALS AND MACHINING
15323 GARFIELD AVE
REID PRODUCTS INC
21430 WAALEW RD
SEASTROM MANUFACTURING CO.
456 SEASTROM ST
Reference Numbers (Part Numbers)
MATERIAL DOCUMENT AND CLASSIFICATION
STEEL COMP 303SE
QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE