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Valve Seat NSN 4820-01-449-1979

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 4820-01-449-1979 NSN: 4820-01-449-1979

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Features and Characteristics

Thread Class
3a single threaded portion
Err Default
0.266 inches single threaded portion
Overall Height
0.375 inches
Body Inside Diameter
1.318 inches
End Application
Nimitz class cvn
Thready Qty Per Inch (tpi)
20 single threaded portion
Thread Size
1.8125 inches single threaded portion
Seating Surface Shape
Flat
Material
Nickel alloy
Material Specification
Astm b164 assn standard single material response or astm a494 gr -30c assn standard single material response or qq-n-281 federal specification single material response
Style Designator
B5 plain threaded
Thread Series Designator
Un single threaded portion
FSC
4820 Nonpowered Valves
NIIN
014491979
NSN
4820014491979

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
803-4384536-61XX-85
Cage Code:
80064
Status:
A
MSDS:
Part Number:
803-4384536 PC 85
Cage Code:
80064
Status:
A
MSDS:
Part Number:
4384536
Cage Code:
80064
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 4820-01-449-1979
What are the manufacturers of nsn 4820014491979?
Does this nsn 4820014491979 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014491979
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 4820014491979 contain any precious metals?
No precious metal content.
Does nsn 4820014491979 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014491979?
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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