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Part Number

Part Number:
NSN:
NIIN:
Item Name:
VALVE , POPPET , ENGINE

Definition:

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.

CAGE Information

Code Company
31033 TRW INC TRW INTL TRADE GOVERNMENT SA

Federal Supply Class

Title

DIESEL ENGINES AND COMPONENTS

Inclusions:

INCLUDES AUTOMOTIVE, INDUSTRIAL, MARINE, LOCOMOTIVE, AND ALL OTHER TYPES OF DIESEL AND SEMI-DIESEL ENGINES.

Exclusions:

EXCLUDES ENGINES ACCESSORIES (FSC 2990).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ALZD STEM LENGTH 6.3870 INCHES NOMINAL
ALZH DISTANCE FROM FIRST GROOVE TO STEM END 0.2350 INCHES NOMINAL
ALZB NECK RADIUS 0.3750 INCHES NOMINAL
ALZL FIRST GROOVE DIAMETER 0.3050 INCHES NOMINAL
AJFY SEAT ANGLE IN DEG 45.0
ANNQ MATERIAL AND LOCATION STEEL OVERALL
ALZE STEM DIAMETER 0.3720 INCHES NOMINAL
ALZJ DISTANCE FROM SECOND GROOVE TO STEM END 0.3940 INCHES NOMINAL
ALYZ CARBON RELIEF GROOVE NOT INCLUDED
AASU HEAD HEIGHT 0.1500 INCHES NOMINAL
ALZN SECOND GROOVE DIAMETER 0.3050 INCHES NOMINAL
AASK HEAD STYLE FLAT
AAZP CHAMFER LENGTH 0.0156 INCHES NOMINAL
ALZR SECOND GROOVE WIDTH 0.0650 NOMINAL INCHES
ASXJ METALLIC HARDNESS RATING AND LOCATION 50.0 ROCKWELL C UPPER GYRO HOUSING TOP MINIMUM AND 60.0 ROCKWELL C MOUNTING PLATE ASSEMBLY MINIMUM
ALZQ FIRST GROOVE WIDTH 0.0650 INCHES NOMINAL
ALYX STEM STYLE DOUBLE GROOVED
ABKV OUTSIDE DIAMETER 1.8950 INCHES NOMINAL
AATE CHAMFER ANGLE IN DEG 45.0

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