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

Engine Poppet Valve

Model / MPN: 8754638 | NSN: 2805-00-150-7325
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
2805-00-150-7325
Sold in multiples of
1 EA
DEMIL
NO
Head Style
Flat
Head Height
0.1600 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.2680 inches and 0.2720 inches
Chamfer Length
0.0150 inches
Groove Width
Between 0.0950 inches and 0.1050 inches
Outside Diameter
Between 1.7280 inches and 1.7380 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.3800 inches
Stem Length
Between 4.4050 inches and 4.4150 inches
Stem Diameter
Between 0.3130 inches and 0.3135 inches
Distance From Groove To Stem End
Between 0.1930 inches and 0.2030 inches
Material And Location
Steel, forged
Metallic Hardness Rating And Location
20.0 rockwell c stem
Metallic Hardness Rating And Location
50.0 rockwell c seat face
Metallic Hardness Rating And Location
50.0 rockwell c tip
87546 Series Parts

Pricing and Availability

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8754638 Cross Reference
  • 7345258