4720-01-163-7186 TUBING,NONMETALLIC Index 2815-01-163-7190 VALVE,POPPET,ENGINE

National Stock Number:
2815-01-163-7189

Federal Supply Class:
2815

National Item Identification Number:
011637189

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:
1403392711862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
140339277X677GENERAL MOTORS LLC
1405065711862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
2815PL08737739009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
574004134623AM GENERAL LLC


Techincal Specification:
DISTANCE FROM FIRST GROOVE TO STEM END7.00 MILLIMETERS NOMINAL
DISTANCE FROM SECOND GROOVE TO STEM END13.225 MILLIMETERS NOMINAL
CARBON RELIEF GROOVENOT INCLUDED
CHAMFER ANGLE IN DEG15.0
CHAMFER LENGTH1.02 MILLIMETERS MAXIMUM
FIRST GROOVE DIAMETER7.57 MILLIMETERS NOMINAL
FIRST GROOVE WIDTH2.54 MILLIMETERS NOMINAL
HEAD HEIGHT4.70 MILLIMETERS NOMINAL
HEAD STYLEFLAT
III MATERIAL AND LOCATIONSTEEL, CORROSION RESISTING OVERALL
PROPRIETARY CHARACTERISTICSPACS
METALLIC HARDNESS RATING AND LOCATION42.0 ROCKWELL C MAXIMUM HEAD ERR-100
METALLIC HARDNESS RATING AND LOCATION42.0 ROCKWELL C MAXIMUM STEM ERR-100
METALLIC HARDNESS RATING AND LOCATION49.0 ROCKWELL C MINIMUM TIP ERR-100
MINOR DIAMETER LENGTH18.44 MILLIMETERS MAXIMUM
MINOR OUTSIDE DIAMETER8.679 MILLIMETERS MAXIMUM
NECK RADIUS15.0 MILLIMETERS NOMINAL
OUTSIDE DIAMETER46.00 MILLIMETERS NOMINAL
SEAT ANGLE IN DEG45.0
SECOND GROOVE DIAMETER7.57 MILLIMETERS NOMINAL
SECOND GROOVE WIDTH2.795 MAJOR INCHES
STEM DIAMETER8.679 MILLIMETERS MAXIMUM
STEM LENGTH125.10 MILLIMETERS NOMINAL
STEM STYLEDOUBLE GROOVED


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