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 6130-01-471-4569
NSN 5965-01-445-3564
NSN 5945-00-666-4700
NSN 4140-00-437-3778
NSN 5910-00-287-3258
NSN 5910-00-216-4726
NSN 5925-00-182-7452
NSN 6110-00-253-1881
NSN 5915-00-852-1256
NSN 5905-00-127-7042
NSN 5950-01-158-7851
NSN 6620-01-207-0639