2815-00-273-0455 RING,PISTON Index 2815-00-273-0459 RING,PISTON

National Stock Number:
2815-00-273-0458

Federal Supply Class:
2815

National Item Identification Number:
002730458

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.


Manufacturer Information:
533781601NORFOLK NAVAL SHIPYARD


Techincal Specification:
MATERIALIRON OVERALL
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
JOINT STYLEVERTICAL JOINT
RING STYLECONCENTRIC
RADIAL WALL THICKNESS0.1600 INCHES MINIMUM AND
0.1700 INCHES MAXIMUM
OVERALL WIDTH0.1225 INCHES NOMINAL
STANDARD BORE DIAMETER4.250 INCHES


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