Serving our customers with quality and safety first.
No specification found for this NSN.
A nonmetallic cup-shaped item designed to be located within a cylinder, and whose contact edge with the cylinder walls is usually feathered. This item, by means of extrusion, makes close physical contact with the cylinder walls in order to prevent the escape of internal pressure. The item may have a center hole and/or bolt holes. Excludes cup, hydraulic brake cylinder.