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 5998-01-072-9966
NSN 6240-01-351-6729
NSN 5998-01-582-3804
NSN 6620-00-146-3465
NSN 6320-01-659-2819
NSN 5920-01-443-3771
NSN 5998-00-839-8970
NSN 5905-01-569-5928
NSN 6135-01-571-7488
NSN 6685-01-086-8958
NSN 2925-00-225-5386
NSN 6145-00-971-5923