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 5965-00-639-6621
NSN 5895-01-290-4838
NSN 5930-01-387-8768
NSN 6110-01-315-9784
NSN 5920-00-422-5517
NSN 6620-00-346-7591
NSN 5835-00-498-8189
NSN 5960-01-249-4550
NSN 5985-01-618-7060
NSN 5999-00-398-1583
NSN 6220-01-624-2825
NSN 2925-00-614-1758