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Safety Relief Valve NSN 4820-01-350-3686

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 4820-01-350-3686 NSN: 4820-01-350-3686

Features and Characteristics

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
0.7 gallons per minute
Maximum Operating Temp
180.0 degrees fahrenheit single response
Connection Style
G50 external seat for gasket seal (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external boss all ends
Thready Qty Per Inch (tpi)
20 all ends
Thread Size
0.438 inches all ends
Opening Pressure Setting
30.0 pounds per square inch
Material
Aluminum alloy body
Surface Treatment
Anodize
Style Designator
Err-090
Thread Series Designator
Unj all ends
FSC
4820 Nonpowered Valves
NIIN
013503686
NSN
4820013503686

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
577A1-4D-30
Cage Code:
91816
Status:
A
MSDS:
Part Number:
334220P01
Cage Code:
58163
Status:
A
MSDS:
Part Number:
334220
Cage Code:
33654
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 4820-01-350-3686
What are the manufacturers of nsn 4820013503686?
Does this nsn 4820013503686 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013503686
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 4820013503686 contain any precious metals?
No precious metal content.
Does nsn 4820013503686 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013503686?
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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