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 6145-01-381-3958
NSN 4140-00-110-4524
NSN 5905-01-243-0733
NSN 2925-00-953-2920
NSN 5975-00-143-4658
NSN 5990-01-052-1987
NSN 5915-01-363-7988
NSN 6320-01-271-0247
NSN 6240-01-210-7052
NSN 6110-01-549-6184
NSN 5915-01-301-6093
NSN 5835-00-912-5656