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Engine Poppet Valve NSN 2805-00-520-2421

Item Description

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.

NSN 2805-00-520-2421 NSN: 2805-00-520-2421

Features and Characteristics

Head Style
Raised face
Head Height
Between 0.1875 inches and 0.2025 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 0.3090 inches and 1.3700 inches
Seat Angle In Deg
7.0
Stem Style
Grooved
Carbon Relief Groove
Included
Neck Radius
0.2500 inches
Stem Length
4.1010 inches
Stem Diameter
Between 0.3080 inches and 0.3090 inches
Distance From Groove To Stem End
Between 0.2400 inches and 0.2500 inches
Material And Location
Steel
Metallic Hardness Rating And Location
50.0 shore scleroscope tip err-100
FSC
2805 Except Aircraft; And Components Gasoline Reciprocating Engines
NIIN
005202421
NSN
2805005202421

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AE78C
Cage Code:
66289
Status:
A
MSDS:
Part Number:
4042
Cage Code:
80900
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8409918000
  • NAICS: 333618
  • SITC: 71391
  • Description: Parts for spark-ignition internal combustion piston engines, nesoi
  • End Use (Code 21100):
    Industrial engines

Q & A

Frequently asked questions for NSN 2805-00-520-2421
What are the manufacturers of nsn 2805005202421?
Does this nsn 2805005202421 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 2805005202421
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.
Does nsn 2805005202421 contain any precious metals?
Precious metal content is unknown.
Does nsn 2805005202421 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 2805005202421?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15884
FIIG:
A11200
App. Key:
A
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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