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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
34623 AM GENERAL LLC

Federal Supply Class

Title

GASOLINE RECIPROCATING ENGINES,

Inclusions:

INCLUDES GAS RECIPROCATING ENGINES; ALL GASOLINE RECIPROCATING ENGINES EXCEPT AIRCRAFT PRIME MOVING.

Exclusions:

EXCLUDES ENGINE ACCESSORIES (FSC 2990).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AAZP CHAMFER LENGTH 0.0312 INCHES NOMINAL
AAZP CHAMFER LENGTH 0.0312 INCHES NOMINAL
ALZB NECK RADIUS 0.7500 INCHES NOMINAL
ALZG DISTANCE FROM GROOVE TO STEM END 0.1875 INCHES NOMINAL
ALZE STEM DIAMETER 0.3733 INCHES MINIMUM AND 0.3738 INCHES MAXIMUM
ASXJ METALLIC HARDNESS RATING AND LOCATION 52.0 ROCKWELL C MINIMUM TIP
AJFY SEAT ANGLE IN DEG 45.0
ALYX STEM STYLE GROOVED
ALYZ CARBON RELIEF GROOVE NOT INCLUDED
ANNQ MATERIAL AND LOCATION STEEL, FED STD 66, AISI/SAE 5150 OVERALL
ALZD STEM LENGTH 4.6250 INCHES NOMINAL
ABGF GROOVE WIDTH 0.3105 INCHES MINIMUM AND 0.3145 INCHES MAXIMUM
ZZZV FSC APPLICATION DATA GASOLINE ENGINE
AAVZ GROOVE DIAMETER 0.2480 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM
AASU HEAD HEIGHT 0.1562 INCHES NOMINAL
ABKV OUTSIDE DIAMETER 2.0000 INCHES NOMINAL
AASK HEAD STYLE INVERTED CONE
AATE CHAMFER ANGLE IN DEG 45.0

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