Model: B281

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
0.2200 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.2670 inches and 0.2730 inches
Chamfer Length
0.0156 inches
Groove Width
Between 0.0950 inches and 0.1050 inches
Outside Diameter
Between 1.5060 inches and 1.5160 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.4375 inches
Stem Length
Between 4.3180 inches and 4.3380 inches
Stem Diameter
Between 0.3090 inches and 0.3100 inches
Distance From Groove To Stem End
0.2969 inches
Material And Location
Steel, federal standard 66, aisi/sae 3140
Fsc Application Data
Gasoline engine
NSN
2805-00-352-3083
Part Number
B281
Description
Valve,poppet,engine
CAGE
6N299

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 B281 NSN 2805-00-352-3083

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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