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Valve Seat NSN 4820-01-181-8522

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 4820-01-181-8522 NSN: 4820-01-181-8522

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Features and Characteristics

Flange Diameter
1.187 inches
Body Outside Diameter
0.848 inches
Body Inside Diameter
1.109 inches
Flange Seat To Disk End Height
0.234 inches
Under Flange Height
0.110 inches
Seat Angle In Deg
45.000
Seating Surface Shape
Angular
Material
Nickel alloy seat
Style Designator
Plain flanged
FSC
4820 Nonpowered Valves
NIIN
011818522
NSN
4820011818522

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
803-4384536-4XXY-13 SPCLN
Cage Code:
80064
Status:
A
MSDS:
Part Number:
803-4384536 E1
Cage Code:
80064
Status:
A
MSDS:
Part Number:
803-4384536
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 4820-01-181-8522
What are the manufacturers of nsn 4820011818522?
Does this nsn 4820011818522 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011818522
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 4820011818522 contain any precious metals?
No precious metal content.
Does nsn 4820011818522 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011818522?
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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