Model: 4-2670

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1400 inches and 0.1600 inches
Chamfer Angle In Deg
45.0
Chamfer Length
0.0312 inches
Outside Diameter
Between 1.7450 inches and 1.7550 inches
Seat Angle In Deg
45.0
Stem Style
Double grooved
Carbon Relief Groove
Not included
Neck Radius
0.3120 inches
Stem Length
Between 4.5515 inches and 4.5965 inches
Stem Diameter
Between 0.3415 inches and 0.3425 inches
Distance From First Groove To Stem End
0.1830 inches
Distance From Second Groove To Stem End
0.4540 inches
First Groove Diameter
Between 0.2980 inches and 0.3040 inches
Second Groove Diameter
Between 0.2740 inches and 0.2800 inches
First Groove Width
Between 0.0950 inches and 0.1050 inches
Second Groove Width
0.0390 mils and 0.0450 centimeters
Material And Location
Steel
Fsc Application Data
Gasoline engine
NSN
2805-00-737-8857
Part Number
4-2670
Description
Valve,poppet,engine
CAGE
7X677

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 4-2670 NSN 2805-00-737-8857

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: 8409918000
  • SITC: 71391
  • End Use: Industrial engines
  • NAICS: 333618
  • USDA: 1

Freight Class: Parts for spark-ignition internal combustion piston engines, nesoi

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