Model: 858743

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
0.1450 inches
Chamfer Angle In Deg
30.0
Chamfer Length
0.0312 inches
Taper Angle In Deg
10.0
Outside Diameter
Between 1.1980 inches and 1.2080 inches
Minor Outside Diameter
Between 0.2710 inches and 0.2750 inches
Minor Diameter Length
0.2500 inches
Seat Angle In Deg
45.0
Stem Style
Tapered
Carbon Relief Groove
Not included
Neck Radius
0.2500 inches
Stem Length
5.0469 inches
Stem Diameter
Between 0.3708 inches and 0.3716 inches
Distance From Minor Diameter To Stem End
Between 0.2220 inches and 0.2240 inches
Material And Location
Steel seat face
NSN
2805-00-416-7429
Part Number
858743
Description
Valve,poppet,engine
CAGE
16662

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 858743 NSN 2805-00-416-7429

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
LVL_A:
Q
LVL_B:
Q

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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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