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 5930-01-232-9865
NSN 5950-01-353-9159
NSN 5895-01-142-0937
NSN 7035-01-034-4443
NSN 6685-01-186-4838
NSN 7035-00-585-2113
NSN 5925-01-497-0343
NSN 6150-01-122-7900
NSN 6645-01-242-9699
NSN 5910-01-307-8395
NSN 6145-01-487-5589
NSN 6620-01-461-3550