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 5855-01-400-1590
NSN 5960-01-124-0182
NSN 6150-00-431-3723
NSN 5910-01-342-7670
NSN 5996-01-048-5196
NSN 6610-00-106-3401
NSN 6220-00-422-2355
NSN 6645-01-426-8621
NSN 6150-01-500-5999
NSN 6320-01-332-7020
NSN 5950-01-507-3732
NSN 5915-01-069-2775