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

Engine Poppet Valve

Model / MPN: 58108A | NSN: 2805-00-271-9072
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
2805-00-271-9072
Sold in multiples of
1 EA
DEMIL
NO
Head Style
Flat
Head Height
Between 0.1240 inches and 0.1440 inches
Chamfer Angle In Deg
45.0
Hole Diameter
Between 0.1280 inches and 0.1310 inches
Chamfer Length
0.0312 inches
Outside Diameter
Between 1.2450 inches and 1.2550 inches
Seat Angle In Deg
30.0
Stem Style
Drilled
Carbon Relief Groove
Not included
Neck Radius
0.2187 inches
Stem Length
Between 2.9770 inches and 2.9820 inches
Stem Diameter
Between 0.2470 inches and 0.2480 inches
Distance From Hole Center To Stem End
0.1562 inches
Material And Location
Cobalt alloy seat face
Material And Location
Steel, federal standard 66, aisi/sae 3140 head
Material And Location
Steel, federal standard 66, aisi/sae 3140 stem
Metallic Hardness Rating And Location
37.0 rockwell c tip
Fsc Application Data
Gasoline engine
58108A Series Parts

Pricing and Availability

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58108A Cross Reference
  • IN5022
  • J4106-1B
  • 58108A