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Safety Relief Valve NSN 4820-00-930-7420

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 4820-00-930-7420 NSN: 4820-00-930-7420

Features and Characteristics

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Valve Discharge Flow Rate
0.5 gallons per minute
Connection Style
G51a swivel nut, flared (tube) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
20 1st end
Thread Size
0.437 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
9.0 pounds per square inch
Seat Radius
0.005 inches
Outside Diameter Tube Accommodated
0.250 inches 1st end
Style Designator
Err-090
Thread Series Designator
Unf 1st end
FSC
4820 Nonpowered Valves
NIIN
009307420
NSN
4820009307420

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
696771-2
Cage Code:
99193
Status:
A
MSDS:
Part Number:
2D1608
Cage Code:
99240
Status:
A
MSDS:
Part Number:
2380-2-1
Cage Code:
81833
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 4820-00-930-7420
What are the manufacturers of nsn 4820009307420?
Does this nsn 4820009307420 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820009307420
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 4820009307420 contain any precious metals?
No precious metal content.
Does nsn 4820009307420 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820009307420?
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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