6625-00-818-1614 BOARD ASSEMBLY Index 2815-00-818-1616 RING,PISTON

National Stock Number:
2815-00-818-1615

Federal Supply Class:
2815

National Item Identification Number:
008181615

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:
825770724617GENERAL MOTORS CORP
825770772915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV


Techincal Specification:
CROSS-SECTIONAL SHAPE STYLEFOUR FILLED GROOVES, STRAIGHT FACE SCRAPER
FSC APPLICATION DATAENGINE DIESEL NONAIRCRAFT
JOINT STYLEVERTICAL JOINT
OVERALL WIDTH0.2420 INCHES NOMINAL
MATERIALIRON OVERALL
RADIAL WALL THICKNESS0.3050 INCHES MINIMUM AND 0.3150 INCHES MAXIMUM
RING STYLECONCENTRIC
SPECIAL FEATURESWEARING SURFACE IS TAPPERED 1 DEG PORM O DEG,12MIN
STANDARD BORE DIAMETER8.500 INCHES


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