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Valve Seat NSN 4820-00-399-2553

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 4820-00-399-2553 NSN: 4820-00-399-2553

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Features and Characteristics

Thread Class
2a single threaded portion
Err Default
0.400 inches single threaded portion
Flange Diameter
1.750 inches
Body Inside Diameter
0.375 inches
Flange Seat To Disk End Height
0.219 inches
Under Flange Height
0.530 inches
Seat Angle In Deg
45.000
Thread Size
2.375 inches single threaded portion
Seating Surface Shape
Angular
Material
Nickel alloy
Style Designator
Threaded flanged
Thread Series Designator
Unf single threaded portion
FSC
4820 Nonpowered Valves
NIIN
003992553
NSN
4820003992553

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
C3770K
Cage Code:
86184
Status:
A
MSDS:
Part Number:
C3770
Cage Code:
86184
Status:
A
MSDS:
Part Number:
TV5496
Cage Code:
86184
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 4820-00-399-2553
What are the manufacturers of nsn 4820003992553?
Does this nsn 4820003992553 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003992553
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 4820003992553 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003992553 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003992553?
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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