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 4140-00-144-6833
NSN 5996-01-120-8910
NSN 6645-01-062-0905
NSN 5855-01-424-1090
NSN 6650-01-207-0039
NSN 5945-01-407-3716
NSN 5950-01-323-9480
NSN 6110-01-113-7642
NSN 5920-01-056-5481
NSN 5965-01-077-3346
NSN 6145-01-119-3746
NSN 6320-01-521-1764