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

Engine Poppet Valve

Model / MPN: 840-230136B | NSN: 2815-00-106-8056
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
2815-00-106-8056
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Head Style
Flat
Head Height
Between 0.1670 inches and 0.2070 inches
Chamfer Angle In Deg
30.0
Outside Diameter
Between 1.9300 inches and 1.9400 inches
Seat Angle In Deg
45.0
Stem Style
Double grooved
Carbon Relief Groove
Not included
Neck Radius
0.4400 inches
Stem Length
7.2500 inches
Stem Diameter
Between 0.3710 inches and 0.3720 inches
First Groove Diameter
Between 0.3020 inches and 0.3080 inches
Second Groove Diameter
Between 0.3020 inches and 0.3080 inches
Material And Location
Steel seat face
Material And Location
Steel head
Material And Location
Steel, ems class 57, eaton, yale and towne inc stem
Metallic Hardness Rating And Location
30.0 rockwell c stem and 40.0 rockwell c stem

Pricing and Availability

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840-230136B Cross Reference
  • 230136B