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Safety Relief Valve NSN 4820-01-135-2456

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 4820-01-135-2456 NSN: 4820-01-135-2456

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Valve Discharge Flow Rate
150.0 pounds per hour
Connection Style
G41b inverted flare (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Adjustable Pressure Range
+0.0/+150.0 pounds per square inch
Thread Size
0.250 inches 1st end
Opening Pressure Setting
0.5 pounds per square inch
Special Features
Max operating pressure and temp, 200 lb psi, 280 degrees f; designed for air, alcohol, ammonia, hydrocarbon fuel/oil, helium, inert gas, and gaseous nitrogen
Material
Aluminum alloy 2024
Material Specification
Qq-a-225/6, t4 federal specification single material response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011352456
NSN
4820011352456

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D559A12D150
Cage Code:
91816
Status:
A
MSDS:
Part Number:
LT1038-09
Cage Code:
8346B
Status:
A
MSDS:
Part Number:
10145354
Cage Code:
A486G
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 4820-01-135-2456
What are the manufacturers of nsn 4820011352456?
Does this nsn 4820011352456 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011352456
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 4820011352456 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820011352456 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011352456?
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
  •   Quality Inspected Parts
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