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 6145-01-085-6799
NSN 7035-01-295-1609
NSN 5965-00-246-4767
NSN 5905-00-577-3069
NSN 6620-00-286-5721
NSN 5998-01-147-5326
NSN 6110-01-198-1557
NSN 6150-01-103-8028
NSN 6110-01-332-2513
NSN 5920-01-401-5315
NSN 5920-01-094-7284
NSN 5910-00-146-5650