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, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 6645-00-719-9177
NSN 6320-01-082-2970
NSN 5915-00-413-4623
NSN 5895-01-422-5301
NSN 6320-01-481-7322
NSN 6620-01-268-9693
NSN 6135-01-247-5660
NSN 5950-01-633-6540
NSN 5999-00-554-9966
NSN 5895-00-422-4239
NSN 5910-00-485-7820
NSN 5835-01-122-0068