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 6320-01-386-3491
NSN 5950-01-625-4029
NSN 5915-00-233-2569
NSN 5990-01-452-0911
NSN 5996-01-480-3037
NSN 6645-01-495-0939
NSN 5950-01-322-4010
NSN 5998-01-355-3694
NSN 5930-00-439-0870
NSN 2925-00-144-6405
NSN 6145-00-526-3038
NSN 6150-01-088-6035