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Valve Seat NSN 4820-00-318-4720

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 4820-00-318-4720 NSN: 4820-00-318-4720

Features and Characteristics

Thread Class
2a single threaded portion
Err Default
0.688 inches single threaded portion
Flange Diameter
2.813 inches
Body Inside Diameter
1.875 inches
Flange Seat To Disk End Height
0.250 inches
Under Flange Height
1.000 inches
Seat Angle In Deg
45.000
Thready Qty Per Inch (tpi)
14 single threaded portion
Thread Size
2.375 inches single threaded portion
Seating Surface Shape
Angular
Material
Copper alloy
Style Designator
Threaded flanged
Thread Series Designator
Uns single threaded portion
FSC
4820 Nonpowered Valves
NIIN
003184720
NSN
4820003184720

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20J924-514
Cage Code:
90099
Status:
A
MSDS:
Part Number:
B5642
Cage Code:
37239
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 4820-00-318-4720
What are the manufacturers of nsn 4820003184720?
Does this nsn 4820003184720 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003184720
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 4820003184720 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820003184720 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003184720?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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