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 5965-01-606-2633
NSN 6105-00-148-8279
NSN 5910-01-421-0303
NSN 6110-01-432-5238
NSN 5975-00-890-0129
NSN 6105-01-246-7402
NSN 5965-01-391-9507
NSN 5990-01-303-0564
NSN 6145-01-381-0032
NSN 5930-01-435-6283
NSN 6610-01-434-4958
NSN 5999-00-836-8462