Model: A983

Engine Poppet Valve

Properties:

Head Style
Flat
Head Height
0.1300 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
1.0000 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.1875 inches
Stem Length
3.9219 inches
Stem Diameter
Between 0.3090 inches and 0.3100 inches
Distance From Groove To Stem End
0.2812 inches
Material And Location
Steel, federal standard 66, aisi/sae 3140 stem
Material And Location
Steel, federal standard 66, sae ev7 head
Metallic Hardness Rating And Location
41.0 rockwell c tip
Fsc Application Data
Gasoline engine
NSN
2805-00-271-9548
Part Number
A983
Description
Valve,poppet,engine
CAGE
77576

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 A983 NSN 2805-00-271-9548

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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