Model: 329MBT1

Engine Poppet Valve

Properties:

Head Style
Concave
Head Height
Between 0.2620 inches and 0.2820 inches
Chamfer Angle In Deg
45.0
Chamfer Length
0.0312 inches
Taper Angle In Deg
20.0
Outside Diameter
Between 0.7470 inches and 2.7530 inches
Minor Outside Diameter
0.3906 inches
Minor Diameter Length
Any acceptable
Seat Angle In Deg
30.0
Stem Style
Tapered multi-grooved
Carbon Relief Groove
Not included
Neck Radius
0.8750 inches
Stem Length
Between 5.8340 inches and 5.8390 inches
Stem Diameter
Between 0.5270 inches and 0.5280 inches
Distance From First Groove To Stem End
0.1490 inches
Distance From Second Groove To Stem End
0.3090 inches
Distance From Third Groove To Stem End
0.4690 inches
First Groove Diameter
Between 0.3390 inches and 0.3440 inches
Second Groove Diameter
Between 0.3390 inches and 0.3440 inches
Third Groove Diameter
Between 0.3390 inches and 0.3440 inches
First Groove Width
Between 0.1000 inches and 0.1020 inches
Second Groove Width
0.1000 mils and 0.1020 centimeters
Second Groove Width
Between 0.1000 inches and 0.1020 inches
Third Groove Width
Between 0.1000 inches and 0.1020 inches
Material And Location
Cobalt alloy seat face
Material And Location
Steel head
Material And Location
Steel stem
Metallic Hardness Rating And Location
70.0 rockwell c tip
Metallic Hardness Rating And Location
80.0 rockwell c tip
Fsc Application Data
Gasoline engine
NSN
2805-00-274-3408
Part Number
329MBT1
Description
Valve,poppet,engine
CAGE
05415

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 329MBT1 NSN 2805-00-274-3408

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: 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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