Model: B258312

Engine Poppet Valve

Properties:

Head Style
Concave
Head Height
Between 0.1700 inches and 0.1900 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.3740 inches and 0.3760 inches
Chamfer Length
Between 0.0050 inches and 0.0100 inches
Groove Width
Between 0.3150 inches and 0.3250 inches
Outside Diameter
Between 2.0970 inches and 2.1030 inches
Seat Angle In Deg
92.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.8200 inches
Stem Length
Between 5.3925 inches and 5.4785 inches
Stem Diameter
Between 0.4220 inches and 0.4260 inches
Distance From Groove To Stem End
0.1810 inches
Material And Location
Steel, federal standard 66, sae ev3 head
Material And Location
Steel, federal standard 66, sae hnv3 stem
Material And Location
Steel, federal standard 66, sae ev3 seat face
Material And Location
Steel, federal standard 66, sae ev3 tip
NSN
2805-00-350-4970
Part Number
B258312
Description
Valve,poppet,engine
CAGE
19207

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 B258312 NSN 2805-00-350-4970

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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