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 5985-01-321-4001
NSN 5996-01-258-0768
NSN 5990-01-364-8405
NSN 5920-01-555-5403
NSN 4140-00-335-2863
NSN 5996-01-141-5435
NSN 6685-01-483-0349
NSN 6220-00-401-9905
NSN 5935-01-490-2389
NSN 5960-01-386-5770
NSN 5935-01-027-0022
NSN 4140-00-300-8111