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 5985-01-090-0098
NSN 5910-00-144-4383
NSN 6620-00-391-0374
NSN 6130-01-302-2153
NSN 5905-00-706-3985
NSN 5835-01-318-5268
NSN 5998-00-063-8081
NSN 7035-01-246-3086
NSN 2925-01-076-6128
NSN 4140-01-058-6603
NSN 5915-01-468-0053
NSN 4140-00-809-8996