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 5945-00-120-0074
NSN 6320-01-067-0474
NSN 5960-01-459-6665
NSN 6685-00-599-8407
NSN 5925-00-109-2232
NSN 5895-01-369-7858
NSN 5905-01-487-7452
NSN 5935-00-580-1724
NSN 5999-01-408-7913
NSN 6135-01-210-8715
NSN 5945-01-232-2943
NSN 6645-00-925-2887