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 5835-00-851-6470
NSN 6685-01-159-4048
NSN 6150-00-961-9584
NSN 5985-00-804-9005
NSN 5990-01-041-4351
NSN 6135-01-633-8502
NSN 5895-01-478-0863
NSN 5910-01-307-3417
NSN 6105-01-448-7843
NSN 5935-01-429-7182
NSN 6650-00-620-0212
NSN 2925-00-400-5634