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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 5950-00-529-0599
NSN 5996-00-399-0731
NSN 5975-00-753-7669
NSN 4140-01-592-9169
NSN 6105-00-225-3824
NSN 5915-00-368-4564
NSN 6135-01-136-7087
NSN 5915-01-427-9857
NSN 4140-01-604-9981
NSN 2925-01-539-4486
NSN 5920-01-014-0611
NSN 6220-01-629-0190