Model: S1021

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
Between 0.0630 inches and 0.1140 inches
Chamfer Angle In Deg
30.0
Chamfer Length
0.0430 inches
Outside Diameter
Between 1.4340 inches and 1.4440 inches
Seat Angle In Deg
45.0
Stem Style
Double grooved
Carbon Relief Groove
Not included
Neck Radius
0.3125 inches
Stem Length
Between 5.5525 inches and 5.5625 inches
Stem Diameter
Between 0.3710 inches and 0.3720 inches
Distance From First Groove To Stem End
Between 0.3935 inches and 0.4435 inches
Distance From Second Groove To Stem End
Between 0.5485 inches and 0.6005 inches
First Groove Diameter
Between 0.3020 inches and 0.3080 inches
Second Groove Diameter
Between 0.3020 inches and 0.3080 inches
First Groove Width
Between 0.0604 inches and 0.0644 inches
Second Groove Width
0.0604 mils and 0.0644 centimeters
Material And Location
Steel
Fsc Application Data
Gasoline engine
NSN
2805-00-554-6419
Part Number
S1021
Description
Valve,poppet,engine
CAGE
78557

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 S1021 NSN 2805-00-554-6419

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

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:
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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