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 6645-01-180-6219
NSN 6620-01-420-7465
NSN 5998-01-634-0604
NSN 5905-00-340-3152
NSN 5996-01-025-2333
NSN 5990-01-453-3552
NSN 5965-01-215-0993
NSN 5905-00-672-2852
NSN 7035-01-369-1445
NSN 5996-00-806-6634
NSN 6130-01-273-3615
NSN 5835-00-233-6327