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		                        | National Stock Number:
 4310-01-299-3912
 
 Federal Supply Class:
 4310
 
 National Item Identification Number:
 012993912
 
 Description:
 RING,PISTON
 
 Detail:
 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.
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 Manufacturer Information:
 
 | 31403041 | 2H266 | W B ARNOLD COMPANY, INC. |  | 31403041 | K0359 | WARTSILA WATER SYSTEMS LIMITED | 
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