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Safety Relief Valve NSN 4820-01-011-8241

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 4820-01-011-8241 NSN: 4820-01-011-8241

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Valve Discharge Flow Rate
15.0 gallons per minute
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G42 flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
12 all ends
Adjustable Pressure Range
+40.0/+125.0 pounds per square inch
Maximum Operating Pressure
125.0 pounds per square inch single response
Thread Size
1.062 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
90.0 pounds per square inch
Outside Diameter Tube Accommodated
0.750 inches all ends
Material
Steel comp 303 flow control device
Material Specification
Fed standard 66, aisi 303/sae 30303 federal standard single material response flow control device
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Surface Treatment
Passivate
Style Designator
Err-090
Thread Series Designator
Unj all ends
FSC
4820 Nonpowered Valves
NIIN
010118241
NSN
4820010118241

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
649XB3-12-2
Cage Code:
86768
Status:
A
MSDS:
Part Number:
910208-1
Cage Code:
53711
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 4820-01-011-8241
What are the manufacturers of nsn 4820010118241?
Does this nsn 4820010118241 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010118241
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 4820010118241 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010118241 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010118241?
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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