2805-00-700-6839 LOCK,VALVE SPRING RETAINER Index 2805-00-700-6841 VALVE,POPPET,ENGINE

National Stock Number:
2805-00-700-6840

Federal Supply Class:
2805

National Item Identification Number:
007006840

Description:
VALVE,POPPET,ENGINE

Detail:
A mushroom or tulip-shaped item having a circular head with a conical face and an extended stem used to regulate the flow of incoming fuel-air mixture or air into the combustion chamber or exhaust gases from the combustion chamber of a reciprocating internal combustion engine.


Manufacturer Information:
20216002978RENK AMERICA LLC
20216081401CONTINENTAL BUILT WRIGHT ENGINE PARTS
700684019207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
MATERIAL AND LOCATIONSTEEL, AMS 5710 OVERALL
METALLIC HARDNESS RATING AND LOCATION45.0 ROCKWELL C MINIMUM TIP
50.0 ROCKWELL C MAXIMUM TIP
HEAD STYLECONCAVE
HEAD HEIGHT0.1875 INCHES NOMINAL
OUTSIDE DIAMETER2.3750 INCHES NOMINAL
NECK RADIUS1.0000 INCHES NOMINAL
SEAT ANGLE IN DEG44.0
STEM STYLEDOUBLE GROOVED
CHAMFER LENGTH0.0200 INCHES NOMINAL
STEM LENGTH4.6295 INCHES MINIMUM AND
4.6395 INCHES MAXIMUM
STEM DIAMETER0.5282 INCHES MINIMUM AND
0.5287 INCHES MAXIMUM
DISTANCE FROM FIRST GROOVE TO STEM END0.3960 INCHES MINIMUM AND
0.4120 INCHES MAXIMUM
DISTANCE FROM SECOND GROOVE TO STEM END0.6490 INCHES MINIMUM AND
0.6930 INCHES MAXIMUM
FIRST GROOVE DIAMETER0.4460 INCHES MINIMUM AND
0.4520 INCHES MAXIMUM
SECOND GROOVE DIAMETER0.4660 INCHES MINIMUM AND
0.4700 INCHES MAXIMUM
FIRST GROOVE WIDTH0.3160 INCHES MINIMUM AND
0.3380 INCHES MAXIMUM
SECOND GROOVE WIDTH0.0520 INCHES NOMINAL
CHAMFER ANGLE IN DEG45.0
CARBON RELIEF GROOVENOT INCLUDED


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