Model: 168735

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
Between 0.4860 inches and 0.5160 inches
Groove Diameter
0.5660 mils and 0.5700 centimeters
Groove Width
0.1865 mils and 0.1885 centimeters
Outside Diameter
Between 2.5680 inches and 2.5980 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.8750 inches
Stem Length
5.6070 mils and 5.6370 centimeters
Stem Diameter
0.6815 mils and 0.6825 centimeters
Distance From Groove To Stem End
0.2230 mils and 0.2330 centimeters
Material And Location
Steel
Fsc Application Data
Aircraft eng r2800
NSN
2810-00-294-3056
Part Number
168735
Description
Valve,poppet,engine
CAGE
00198

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.

Part 168735 NSN 2810-00-294-3056

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15884
FIIG:
A11200
Concept No.:
1
App. Key:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8409100080
  • SITC: 71319
  • End Use: Engines and turbines for military aircraft
  • NAICS: 336412
  • USDA: 1

Freight Class: Parts for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil

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