A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 6145-01-463-9001
NSN 5920-01-498-0847
NSN 5910-01-320-9168
NSN 4140-01-454-4537
NSN 5935-01-421-9819
NSN 5895-00-452-7134
NSN 6240-01-513-9642
NSN 5945-00-287-8022
NSN 6320-01-443-3826
NSN 5855-01-408-0703
NSN 5910-01-496-8504
NSN 6610-01-376-3993