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Safety Relief Valve NSN 4820-00-834-4978

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 4820-00-834-4978 NSN: 4820-00-834-4978

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Features and Characteristics

Thread Class
2a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Spool
Valve Discharge Flow Rate
40.0 gallons per minute
Connection Style
G46a plain (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded cartridge all ends
Thready Qty Per Inch (tpi)
14 all ends
Adjustable Pressure Range
+150.0/+1500.0 pounds per square inch
Maximum Operating Pressure
6000.0 pounds per square inch single response
Thread Size
1.000 inches all ends
Material
Steel body
Style Designator
Err-090
Thread Series Designator
Uns all ends
FSC
4820 Nonpowered Valves
NIIN
008344978
NSN
4820008344978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1A30R15S
Cage Code:
8Z296
Status:
A
MSDS:
Part Number:
821907-1
Cage Code:
80206
Status:
A
MSDS:
Part Number:
N1650-0
Cage Code:
8Z296
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 4820-00-834-4978
What are the manufacturers of nsn 4820008344978?
Does this nsn 4820008344978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820008344978
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 4820008344978 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820008344978 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008344978?
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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