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 5905-01-252-4540
NSN 5996-00-106-6758
NSN 2925-01-525-8212
NSN 5835-01-163-4215
NSN 5985-01-501-5908
NSN 5965-01-536-1253
NSN 6150-01-364-9904
NSN 5996-01-561-8910
NSN 6685-01-646-6895
NSN 5965-01-281-3895
NSN 5935-01-548-9763
NSN 4140-00-237-5797