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 5910-01-451-0872
NSN 5999-01-560-1188
NSN 5915-01-120-2165
NSN 5990-01-065-0492
NSN 5998-01-387-6999
NSN 4140-01-417-3022
NSN 6645-01-564-0569
NSN 5996-01-452-0402
NSN 6685-01-433-5550
NSN 5950-00-799-0535
NSN 5998-01-047-8796
NSN 5835-01-090-0784