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 5920-01-116-3576
NSN 6130-00-608-5502
NSN 6150-01-373-2685
NSN 6105-00-971-8295
NSN 5855-01-618-7690
NSN 6220-01-467-2543
NSN 6685-01-221-7678
NSN 6105-01-205-6544
NSN 6105-00-153-0238
NSN 5910-01-446-6433
NSN 6320-01-072-2073
NSN 5920-00-161-2813