National Item Identification Number
00-412-2421
004122421
4820-00-412-2421
4820-00-412-2421
National Stock Number
Item Name
RING,PISTON
Federal Supply Class
4820
Description
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.
Commercial and Government Entity Code (Supplier Data)
45153
70236
79318
99167
Reference Numbers (Part Numbers)
26527022
26527022
26527022
26527022
26527022
Required Categories
Required Description