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Safety Relief Valve NSN 4820-01-262-0949

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 4820-01-262-0949 NSN: 4820-01-262-0949

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
150.0 degrees fahrenheit single response
End Application
Combat system support equipment
Connection Style
G9 plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+42.0/+57.0 pounds per square inch
Maximum Operating Pressure
440.0 pounds per square inch single response
Material
Copper alloy body
Media For Which Designed
Water, fresh single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012620949
NSN
4820012620949

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20-CS-169-9520
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20-CS-169
Cage Code:
01343
Status:
A
MSDS:
Part Number:
D40HUU-04 1/2 IN
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
D40HUU-04S-1/2-1/2
Cage Code:
5P967
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 4820-01-262-0949
What are the manufacturers of nsn 4820012620949?
Does this nsn 4820012620949 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012620949
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 4820012620949 contain any precious metals?
No precious metal content.
Does nsn 4820012620949 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012620949?
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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  •   Quality Inspected Parts
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