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Safety Relief Valve NSN 4820-01-249-1326

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 4820-01-249-1326 NSN: 4820-01-249-1326

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Adjustable Pressure Range
+1500.0/+2000.0 pounds per square inch
Thread Size
1.000 inches 2nd end
Material
Steel comp 316
Style Designator
Err-090
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
012491326
NSN
4820012491326

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4478-5.0501/2IN
Cage Code:
01343
Status:
A
MSDS:
Part Number:
255-1SZ1/2IN1500T2000PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
266-1 1/2IN 1500T2000PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
266-1SZ1/2IN1500T2000PSI
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 4820-01-249-1326
What are the manufacturers of nsn 4820012491326?
Does this nsn 4820012491326 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012491326
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 4820012491326 contain any precious metals?
No precious metal content.
Does nsn 4820012491326 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012491326?
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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  •   Certificate of Conformance
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