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 5950-00-538-2508
NSN 6320-01-527-0211
NSN 5975-01-535-0066
NSN 5990-01-510-4699
NSN 5999-00-988-5414
NSN 5945-00-932-3335
NSN 6150-01-056-6112
NSN 2925-01-305-1370
NSN 5935-01-264-2857
NSN 2925-01-087-9290
NSN 6685-01-556-3449
NSN 6135-00-686-4777