Model: 40651

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1820 inches and 0.1920 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.3590 inches and 0.3650 inches
Chamfer Length
0.0312 inches
Groove Width
Between 0.1560 inches and 0.1660 inches
Outside Diameter
Between 1.8390 inches and 1.8490 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.3800 inches
Stem Length
Between 4.6140 inches and 4.6440 inches
Stem Diameter
Between 0.4330 inches and 0.4340 inches
Distance From Groove To Stem End
0.3200 inches
Material And Location
Cobalt alloy seat face
Material And Location
Steel head
Material And Location
Steel stem
Metallic Hardness Rating And Location
50.0 rockwell c tip
Fsc Application Data
Gasoline engine aircraft
NSN
2810-00-037-3498
Part Number
40651
Description
Valve,poppet,engine
CAGE
28839

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 40651 NSN 2810-00-037-3498

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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