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Valve Seat NSN 4820-00-738-8457

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 4820-00-738-8457 NSN: 4820-00-738-8457

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Features and Characteristics

Thread Class
2a single threaded portion
Err Default
0.562 inches single threaded portion
Flange Diameter
3.750 inches
Body Inside Diameter
3.000 inches
Flange Seat To Disk End Height
0.281 inches
Under Flange Height
0.562 inches
Thready Qty Per Inch (tpi)
16 single threaded portion
Thread Size
3.500 inches single threaded portion
Seating Surface Shape
Flat
Material
Stainless steel
Style Designator
Threaded flanged
Thread Series Designator
Un single threaded portion
FSC
4820 Nonpowered Valves
NIIN
007388457
NSN
4820007388457

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
19438-14002-00
Cage Code:
48422
Status:
A
MSDS:
Part Number:
19438
Cage Code:
48422
Status:
A
MSDS:
Part Number:
40725
Cage Code:
48422
Status:
A
MSDS:
Part Number:
40725PC11IN
Cage Code:
48422
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 4820-00-738-8457
What are the manufacturers of nsn 4820007388457?
Does this nsn 4820007388457 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820007388457
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 4820007388457 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820007388457 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820007388457?
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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