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 6645-01-113-6712
NSN 6620-01-605-2590
NSN 7035-01-053-4769
NSN 6320-01-166-3602
NSN 6685-00-267-9480
NSN 7035-00-616-4410
NSN 5855-01-553-1162
NSN 5985-00-071-9675
NSN 5965-01-633-8849
NSN 4140-01-385-0099
NSN 6135-00-452-2266
NSN 5930-01-660-9227