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 6320-01-322-1310
NSN 5835-01-599-1876
NSN 5910-00-548-0505
NSN 6645-01-438-6986
NSN 2925-01-422-9284
NSN 5920-00-601-2390
NSN 6620-00-383-8740
NSN 5996-00-179-9103
NSN 5950-01-604-8158
NSN 4140-01-134-6256
NSN 5990-00-803-7475
NSN 5998-00-109-0963