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Federal Supply Class
A pliable rubber or composition ring-shaped element, split or jointless (solid) not encased in a metal shell, but having a spring, spreader and/or molded-in reinforcement. It is designed to be pressmounted between fixed and movable or moving parts to form a tight and effective seal.
Commercial and Government Entity Code (Supplier Data)
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III END ITEM IDENTIFICATION
USED ON TF40 AND T55 MARINE INDUSTRIAL ENGINES