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 for steam turbines
NSN 5996-00-715-0837
NSN 6105-01-392-1506
NSN 6620-00-978-8830
NSN 6130-01-569-3293
NSN 6135-01-391-6515
NSN 5925-01-480-6701
NSN 7035-00-020-2227
NSN 5925-00-162-2799
NSN 6130-00-787-9976
NSN 6105-00-141-5598
NSN 6620-01-271-8984
NSN 5996-01-099-1188