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Stop-check Valve NSN 4820-00-189-4937

Item Description

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

NSN 4820-00-189-4937 NSN: 4820-00-189-4937

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
425.0 degrees fahrenheit single response
Connection Style
Socket with brazing ring (pipe) all ends
Valve Operation Method
Manual
Connection Type
Unthreaded internal pipe all ends
Mounting Position
Horizontal
Features Provided
Bonnet packing
Maximum Operating Pressure
400.0 pounds per square inch 2nd response
Special Features
Valve size 0.500 in.
Material
Nickel alloy flow control device
Material Specification
Qq-c-390, alloy d4 federal specification single material response body
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Angle
FSC
4820 Nonpowered Valves
NIIN
001894937
NSN
4820001894937

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
803-4384536-34AXAF
Cage Code:
80064
Status:
A
MSDS:
Part Number:
810-1385722
Cage Code:
53711
Status:
A
MSDS:
Part Number:
803-4384536
Cage Code:
80064
Status:
A
MSDS:
Part Number:
810-4384536-34A22
Cage Code:
53711
Status:
A
MSDS:
Part Number:
810-4384536
Cage Code:
53711
Status:
A
MSDS:
Part Number:
803-4384536-34A22
Cage Code:
80064
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 4820-00-189-4937
What are the manufacturers of nsn 4820001894937?
Does this nsn 4820001894937 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001894937
A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. in the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. in the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. the valve disk may be spring loaded. it may be inline or cartridge (manifold) design. see also valve (1), lift-check and valve (1), stop-lift-check.
Does nsn 4820001894937 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820001894937 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001894937?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
App. Key:
Cond. Code:
2
Status:
A

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