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 6645-00-356-0864
NSN 6135-00-856-1343
NSN 6240-01-050-8306
NSN 4140-01-463-9023
NSN 5895-01-258-5933
NSN 6610-01-592-3329
NSN 6105-00-120-9601
NSN 6150-01-658-5361
NSN 6145-01-357-7853
NSN 5950-01-358-3994
NSN 6145-00-462-2364
NSN 6645-00-221-1058