Model: 30740

Engine Poppet Valve

Properties:

Head Style
Mushroom
Head Height
0.5120 inches
Groove Diameter
0.5060 inches
Groove Width
0.1875 inches
Outside Diameter
Between 2.4780 inches and 2.4880 inches
Seat Angle In Deg
45.0
Stem Style
Grooved
Carbon Relief Groove
Not included
Neck Radius
0.8120 inches
Stem Length
5.3850 inches
Stem Diameter
Between 0.6185 inches and 0.6195 inches
Distance From Groove To Stem End
0.2180 inches
Material And Location
Steel, ams 5700
Metallic Hardness Rating And Location
60.0 rockwell c tip
Fsc Application Data
Aircraft eng r1820
NSN
2810-00-118-6472
Part Number
30740
Description
Valve,poppet,engine
CAGE
00198

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 30740 NSN 2810-00-118-6472

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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
60.0
WCC:
579
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8409100080
  • SITC: 71319
  • End Use: Engines and turbines for military aircraft
  • NAICS: 336412
  • USDA: 1

Freight Class: Parts for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil

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