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 5990-01-497-2138
NSN 5915-00-137-0928
NSN 5905-00-524-5794
NSN 6645-01-586-3434
NSN 6320-00-701-0437
NSN 4140-01-584-4107
NSN 5950-01-471-7564
NSN 5855-01-528-2744
NSN 6220-01-330-8238
NSN 6320-01-414-4568
NSN 5985-01-166-0139
NSN 5910-00-898-5480