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Worldwide distributor of NSN parts and consumables located in the USA.

Engine Poppet Valve

Model / MPN: 78047AS | NSN: 2815-00-288-3903
ITAR Registered seal

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.

Product Details
NATO Stock Number
2815-00-288-3903
Sold in multiples of
1 EA
DEMIL
NO
Head Style
Flat
Head Height
Between 0.1870 inches and 0.1970 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.3290 inches and 0.3350 inches
Chamfer Length
0.0312 inches
Groove Width
Between 0.0950 inches and 0.1050 inches
Outside Diameter
Between 1.3730 inches and 1.3770 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.4375 inches
Stem Length
4.5265 inches
Stem Diameter
Between 0.3725 inches and 0.3735 inches
Distance From Groove To Stem End
0.2812 inches
Material And Location
Steel stem
Material And Location
Steel, federal standard 66, sae ev4 head
Fsc Application Data
Diesel engine
78047AS Series Parts

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78047AS Cross Reference
  • 78047AS
  • 78047AS