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National Stock Number:
2815-00-707-6913
Federal Supply Class:
2815
National Item Identification Number:
007076913
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.
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Manufacturer Information:
| M-3939 | 14541 | COOPER MACHINERY SERVICES LLC | | M3939 | 80992 | IMO DELAVAL INC |
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Techincal Specification:
| MATERIAL AND LOCATION | STEEL, FED STD 66, SAE HNV3 HEAD | | STEEL, FED STD 66, AISI/SAE 3140 STEM | | METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM | | 38.0 ROCKWELL C MAXIMUM STEM | | HEAD STYLE | FLAT | | HEAD HEIGHT | 0.3500 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.2500 INCHES NOMINAL | | NECK RADIUS | 0.3750 INCHES NOMINAL | | SEAT ANGLE IN DEG | 45.0 | | STEM STYLE | GROOVED | | GROOVE DIAMETER | 0.4950 INCHES MINIMUM AND | | 0.4990 INCHES MAXIMUM | | CHAMFER LENGTH | 0.0312 INCHES NOMINAL | | GROOVE WIDTH | 0.4950 INCHES MINIMUM AND | | 0.5000 INCHES MAXIMUM | | STEM LENGTH | 10.3750 INCHES NOMINAL | | STEM DIAMETER | 0.6250 INCHES NOMINAL | | DISTANCE FROM GROOVE TO STEM END | 0.2500 INCHES NOMINAL | | CHAMFER ANGLE IN DEG | 45.0 | | CARBON RELIEF GROOVE | NOT INCLUDED |
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