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 5950-01-330-1667
NSN 6645-01-510-3496
NSN 6645-01-631-3451
NSN 5895-01-381-2532
NSN 5905-01-529-1226
NSN 5998-01-361-8938
NSN 5990-00-222-9899
NSN 5998-00-111-2197
NSN 6150-00-337-4289
NSN 6320-01-457-2805
NSN 7035-01-334-5855
NSN 6110-01-100-4445