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 6685-01-188-5940
NSN 6150-00-884-8530
NSN 5855-00-125-0780
NSN 6105-01-118-5445
NSN 5960-00-517-9359
NSN 5895-01-556-7435
NSN 5935-00-385-3635
NSN 6130-01-494-9329
NSN 6620-00-475-9985
NSN 5985-00-211-2507
NSN 5920-01-104-6198
NSN 6130-00-617-5516