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Valve Seat NSN 4820-00-394-7426

Item Description

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

NSN 4820-00-394-7426 NSN: 4820-00-394-7426

Features and Characteristics

Thread Class
3a single threaded portion
Thread Length
0.312 inches single threaded portion
Flange Diameter
1.188 inches
Flange Seat To Disk End Height
0.125 inches
Under Flange Height
0.312 inches
Thread Size
1.062 inches single threaded portion
Seating Surface Shape
Flat
Body Stepped Inside Diameter
0.688 inches second step
Material
Nickel alloy
Style Designator
Threaded flanged
Thread Series Designator
Unef single threaded portion
FSC
4820 Nonpowered Valves
NIIN
003947426
NSN
4820003947426

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P550A
Cage Code:
70667
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481909090
  • NAICS: 332911
  • SITC: 74790
  • Description: Parts of taps, cocks, valves and similar appliances, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-394-7426
What are the manufacturers of nsn 4820003947426?
Does this nsn 4820003947426 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003947426
A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. the body may have a flange of various shapes. for diesel and gasoline reciprocating engines, see insert, engine valve seat.
Does nsn 4820003947426 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003947426 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003947426?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22113
FIIG:
A15500
App. Key:
A
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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