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 6240-00-170-5302
NSN 6220-00-918-5599
NSN 5996-01-116-2523
NSN 6220-00-528-7752
NSN 6240-01-231-0452
NSN 6220-01-100-4340
NSN 6110-01-533-0382
NSN 4140-00-205-6491
NSN 6320-00-731-6134
NSN 6650-01-386-5787
NSN 6150-00-202-9150
NSN 2925-01-259-7092