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 6645-01-024-5261
NSN 5925-01-112-5405
NSN 6110-01-651-0523
NSN 6150-01-367-7091
NSN 5935-00-135-5594
NSN 5895-01-254-9967
NSN 6145-01-009-0362
NSN 5985-00-296-3284
NSN 6240-01-393-4039
NSN 5998-01-466-3505
NSN 6645-01-261-6903
NSN 4140-01-270-6599