Model: 4477

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
Between 0.1560 inches and 0.1710 inches
Chamfer Angle In Deg
45.0
Groove Diameter
Between 0.2670 inches and 0.2730 inches
Chamfer Length
0.0312 inches
Groove Width
Between 0.0950 inches and 0.1050 inches
Outside Diameter
Between 1.1200 inches and 1.1300 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.2500 inches
Stem Length
Between 3.7795 inches and 3.8045 inches
Stem Diameter
Between 0.3080 inches and 0.3090 inches
Distance From Groove To Stem End
0.2450 inches
Material And Location
Steel, federal standard 66, aisi/sae 8645
Metallic Hardness Rating And Location
50.0 rockwell c tip
Fsc Application Data
Gasoline engine
NSN
2805-00-447-9114
Part Number
4477
Description
Valve,poppet,engine
CAGE
92856

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 4477 NSN 2805-00-447-9114

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:
SU
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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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