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 5915-00-518-4656
NSN 5915-01-501-5895
NSN 5835-01-476-8210
NSN 5950-01-590-6393
NSN 5945-01-615-2924
NSN 5990-01-389-1196
NSN 5950-01-462-5869
NSN 6610-01-253-9180
NSN 6685-01-243-2780
NSN 6150-01-642-4562
NSN 6150-00-807-5221
NSN 6685-01-169-4728