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 6320-01-098-2503
NSN 5925-01-207-0910
NSN 5990-00-422-2093
NSN 7035-01-081-9058
NSN 5990-01-101-7602
NSN 6110-00-744-1301
NSN 6150-01-444-1487
NSN 5965-01-605-1753
NSN 6105-00-089-3235
NSN 6145-01-033-9707
NSN 5855-00-933-9978
NSN 5945-01-218-0809