5325-00-423-3754 RING,RETAINING Index 2805-00-423-3757 VALVE,POPPET,ENGINE

National Stock Number:
2805-00-423-3756

Federal Supply Class:
2805

National Item Identification Number:
004233756

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:
15-30435301DRESSER INDUSTRIES INC LEROI DIV


Techincal Specification:
DISTANCE FROM FIRST GROOVE TO STEM END0.4687 INCHES NOMINAL
DISTANCE FROM SECOND GROOVE TO STEM END1.1550 INCHES NOMINAL
CARBON RELIEF GROOVEINCLUDED
CHAMFER ANGLE IN DEG45.0
CHAMFER LENGTH0.0625 INCHES NOMINAL
FIRST GROOVE DIAMETER0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
FIRST GROOVE WIDTH0.6250 INCHES NOMINAL
HEAD HEIGHT0.2344 INCHES NOMINAL
HEAD STYLEFLAT
OUTSIDE DIAMETER2.8080 INCHES MINIMUM AND 2.8150 INCHES MAXIMUM
MATERIAL AND LOCATIONSTEEL HEAD
MATERIAL AND LOCATIONSTEEL, FED STD 66, AISI/SAE 3140 STEM
METALLIC HARDNESS RATING AND LOCATION28.0 ROCKWELL C MINIMUM STEM
METALLIC HARDNESS RATING AND LOCATION37.0 ROCKWELL C MAXIMUM STEM
METALLIC HARDNESS RATING AND LOCATION45.0 ROCKWELL C NOMINAL TIP
NECK RADIUS0.5625 INCHES NOMINAL
SEAT ANGLE IN DEG45.0
SECOND GROOVE DIAMETER0.5590 INCHES MINIMUM AND 0.5630 INCHES MAXIMUM
SECOND GROOVE WIDTH0.0600 INCHES NOMINAL
STEM DIAMETER0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
STEM LENGTH7.6406 INCHES NOMINAL
STEM STYLEDOUBLE GROOVED


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