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 4140-01-268-7904
NSN 5985-00-952-0004
NSN 6110-01-243-1287
NSN 6320-00-456-2092
NSN 5985-01-172-3164
NSN 5996-01-491-0178
NSN 5965-00-275-0491
NSN 5915-01-223-6411
NSN 5935-00-106-7234
NSN 5975-01-611-5691
NSN 5920-01-573-0137
NSN 6150-01-135-2947