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Safety Relief Valve NSN 4820-00-849-8040

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 4820-00-849-8040 NSN: 4820-00-849-8040

Features and Characteristics

Pipe Size Accommodated
0.750 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Connection Style
G9 plain, optional en (pipe) all ends
Valve Operation Method
Automatic or manual
Connection Type
Threaded internal pipe all ends
Features Provided
Bonnet packing
Thread Size
0.750 inches all ends
Opening Pressure Setting
125.0 pounds per square inch
Material
Copper alloy
Style Designator
Err-090
Thread Series Designator
Npt all ends
Reference Number Differentiating Characteristics
As differentiated by pressure setting data and end connection sizes
FSC
4820 Nonpowered Valves
NIIN
008498040
NSN
4820008498040

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
174A
Cage Code:
79227
Status:
A
MSDS:
Part Number:
174A 3/4-125PSI
Cage Code:
79227
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 4820-00-849-8040
What are the manufacturers of nsn 4820008498040?
Does this nsn 4820008498040 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820008498040
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 4820008498040 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820008498040 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008498040?
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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