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Safety Relief Valve NSN 4820-01-189-8741

Item Description

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

NSN 4820-01-189-8741 NSN: 4820-01-189-8741

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Features and Characteristics

Thread Class
2a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
160.0 degrees fahrenheit single response
End Application
Manifold assembly
Connection Style
G46a plain (tube) all ends
Valve Operation Method
Manual
Connection Type
Threaded external tube 1st end
Thready Qty Per Inch (tpi)
14 all ends
Adjustable Pressure Range
+500.0/+6000.0 pounds per square inch
Maximum Operating Pressure
6000.0 pounds per square inch single response
Thread Size
1.000 inches all ends
Material
Steel body
Media For Which Designed
Hydraulic fluid, petroleum base single response
Thread Series Designator
Uns all ends
FSC
4820 Nonpowered Valves
NIIN
011898741
NSN
4820011898741

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6534C555-1
Cage Code:
80020
Status:
A
MSDS:
Part Number:
6534C555
Cage Code:
36334
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8481400000
  • NAICS: 332911
  • SITC: 74740
  • Description: Safety or relief valves
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-189-8741
What are the manufacturers of nsn 4820011898741?
Does this nsn 4820011898741 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011898741
A valve designed to automatically release excessive pressures. it is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. it is not designed for regulation of continuously fluctuating loads. it may be inline or cartridge (manifold) design. excludes valve (1), relief, pressure and temperature.
Does nsn 4820011898741 contain any precious metals?
No precious metal content.
Does nsn 4820011898741 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011898741?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
App. Key:
AP
Cond. Code:
1
Status:
A

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