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Safety Relief Valve NSN 4820-01-442-2081

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 4820-01-442-2081 NSN: 4820-01-442-2081

Features and Characteristics

Pipe Size Accommodated
0.250 inches all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Wasp class lhd
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Maximum Operating Pressure
3450.0 pounds per square inch single response
Opening Pressure Setting
3300.0 pounds per square inch
Material
Nickel alloy flow control device
Material Specification
Astm b164 assn standard single material response stem
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
014422081
NSN
4820014422081

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20391-01-E-3300
Cage Code:
15187
Status:
A
MSDS:
Part Number:
20391
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20391 ASSY 20391-01-3-3300
Cage Code:
01343
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 4820-01-442-2081
What are the manufacturers of nsn 4820014422081?
Does this nsn 4820014422081 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014422081
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 4820014422081 contain any precious metals?
No precious metal content.
Does nsn 4820014422081 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014422081?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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