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Safety Relief Valve NSN 4820-01-247-6909

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 4820-01-247-6909 NSN: 4820-01-247-6909

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Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
250.0 degrees fahrenheit single response
Minimum Operating Temp
-40.0 degrees fahrenheit
Connection Style
G50 external seat for gasket seal (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
18 all ends
Adjustable Pressure Range
+0.5/+140.0 pounds per square inch
Thread Size
0.375 inches all ends
Opening Pressure Setting
75.0 pounds per square inch
Special Features
Oxygen service; to be cleaned iaw mil-c-81302
Material
Rubber chloroprene class cr packing
Material Specification
Qq-a-225/6 federal specification single material response body
Media For Which Designed
Oxygen, gaseous single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 type i military specification single treatment response
Style Designator
Err-090
Thread Series Designator
Unj all ends
FSC
4820 Nonpowered Valves
NIIN
012476909
NSN
4820012476909

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
RV05-75-75.0
Cage Code:
91816
Status:
A
MSDS:
Part Number:
7M304D6-0750C
Cage Code:
76301
Status:
A
MSDS:
Part Number:
7M304
Cage Code:
76301
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 4820-01-247-6909
What are the manufacturers of nsn 4820012476909?
Does this nsn 4820012476909 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012476909
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 4820012476909 contain any precious metals?
No precious metal content.
Does nsn 4820012476909 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012476909?
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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