Model: M-3939

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
0.3500 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.4950 inches and 0.4990 inches
Chamfer Length
0.0312 inches
Groove Width
Between 0.4950 inches and 0.5000 inches
Outside Diameter
3.2500 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.3750 inches
Stem Length
10.3750 inches
Stem Diameter
0.6250 inches
Distance From Groove To Stem End
0.2500 inches
Material And Location
Steel, federal standard 66, aisi/sae 3140 stem
Material And Location
Steel, federal standard 66, sae hnv3 head
NSN
2815-00-707-6913
Part Number
M-3939
Description
Valve,poppet,engine
CAGE
14541

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 M-3939 NSN 2815-00-707-6913

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:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8409998000
  • SITC: 71392
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Parts for compression-ignition internal combustion piston engines (diesel), nesoi

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