NSN 2805-00-271-9073

Part Details | ENGINE POPPET VALVE

2805-00-271-9073 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.

Alternate Parts: 18012A, 130030, 90209, 18012A, 2805-00-271-9073, 00-271-9073, 2805002719073, 002719073

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
28JAN 01, 196300-271-907315884 ( VALVE, POPPET, ENGINE )
REFERENCE DRAWINGS & PICTURES

CONCAVE

PLAIN

Cross Reference | NSN 2805-00-271-9073
Part Number Cage Code Manufacturer
18012A1ML14BRINKLEY TECHNOLOGY GROUP, LLCDBA HERCULES ENGINE COMPONENTS
13003076894CELTRAC CORP
9020989109GRAHAM PAIGE CORP
18012A28265HERCULES ENGINE CO INC
Technical Data | NSN 2805-00-271-9073
Characteristic Specifications
MATERIAL AND LOCATION STEEL, FED STD 66, AISI/SAE 3140 OVERALL
METALLIC HARDNESS RATING AND LOCATIONADT37.0 ROCKWELL C NOMINAL
HEAD STYLE CONCAVE
HEAD HEIGHT0.1690 INCHES NOMINAL
OUTSIDE DIAMETER2.0625 INCHES NOMINAL
NECK RADIUS0.5000 INCHES NOMINAL
SEAT ANGLE IN DEG30.0
STEM STYLE PLAIN
CHAMFER LENGTH0.0312 INCHES NOMINAL
STEM LENGTH5.7500 INCHES NOMINAL
STEM DIAMETER0.3720 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM
DISTANCE FROM FIRST GROOVE TO STEM END0.2812 INCHES NOMINAL
DISTANCE FROM SECOND GROOVE TO STEM END0.4360 INCHES MINIMUM AND 0.4380 INCHES MAXIMUM
FIRST GROOVE DIAMETER0.3010 INCHES MINIMUM AND 0.3070 INCHES MAXIMUM
SECOND GROOVE DIAMETER0.3010 INCHES MINIMUM AND 0.3070 INCHES MAXIMUM
FIRST GROOVE WIDTH0.0600 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM
SECOND GROOVE WIDTH0.0600 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM
CHAMFER ANGLE IN DEG45.0
CARBON RELIEF GROOVE NOT INCLUDED
FSC APPLICATION DATAGASOLINE ENGINE