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 6105-00-217-8243
NSN 5950-01-356-4241
NSN 6145-01-407-4786
NSN 5915-01-034-3494
NSN 5945-01-271-7456
NSN 6645-00-536-1555
NSN 6645-01-130-5581
NSN 5996-01-193-3220
NSN 6610-00-088-9527
NSN 5985-01-100-3801
NSN 6220-01-649-5291
NSN 6135-00-983-9187