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 6145-01-512-1870
NSN 6110-00-696-3145
NSN 6220-00-601-1612
NSN 5985-01-034-7523
NSN 6110-00-172-3707
NSN 6620-00-980-8046
NSN 5975-01-058-9099
NSN 5945-01-026-8859
NSN 6240-00-186-6611
NSN 6150-01-535-7825
NSN 5990-00-321-8459
NSN 6645-01-123-9277