Model: 26521

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
0.1719 inches
Chamfer Angle In Deg
30.0
Groove Diameter
0.2500 inches
Chamfer Length
0.0469 inches
Groove Width
0.2656 inches
Outside Diameter
1.1250 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.2187 inches
Stem Length
3.7969 inches
Stem Diameter
0.3100 inches
Distance From Groove To Stem End
0.1875 inches
Material And Location
Cobalt alloy tip
Material And Location
Cobalt alloy seat face
Material And Location
Steel, federal standard 66, aisi/sae 8640 stem
Material And Location
Steel, federal standard 66, sae ev4 head
Metallic Hardness Rating And Location
Not rated
Fsc Application Data
Gasoline engine
NSN
2805-00-351-6344
Part Number
26521
Description
Valve,poppet,engine
CAGE
08645

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 26521 NSN 2805-00-351-6344

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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