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 5905-01-571-8206
NSN 6105-01-429-0232
NSN 6145-01-442-6935
NSN 6610-01-463-8866
NSN 5950-01-341-7366
NSN 6110-00-170-6520
NSN 5990-01-124-9063
NSN 5935-01-308-2220
NSN 2925-01-221-9398
NSN 5935-01-571-9433
NSN 5910-00-978-2568
NSN 5990-00-969-6565