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 5999-00-123-1418
NSN 6145-01-524-5365
NSN 5935-01-130-3634
NSN 5935-00-269-5516
NSN 6610-00-526-9440
NSN 5895-00-863-9809
NSN 7035-00-541-8516
NSN 6645-00-559-3623
NSN 5835-01-332-2867
NSN 6105-00-548-3547
NSN 6150-00-872-6000
NSN 5935-00-299-8036