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 6620-00-456-0404
NSN 6105-01-215-1174
NSN 6650-01-268-9702
NSN 5975-01-364-5195
NSN 6135-01-086-0809
NSN 4140-00-293-7847
NSN 5975-01-190-4816
NSN 7035-01-069-3537
NSN 6685-00-257-4088
NSN 6650-00-170-5095
NSN 5910-01-443-3016
NSN 6145-01-246-3988