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 6150-00-319-0814
NSN 5960-00-422-5376
NSN 7035-01-107-2811
NSN 5855-01-234-5346
NSN 6145-00-722-5932
NSN 6150-01-526-5864
NSN 6685-01-415-0972
NSN 6650-00-327-5846
NSN 6240-00-133-1652
NSN 5996-01-565-8951
NSN 5935-00-586-5555
NSN 5950-01-106-8961