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Safety Relief Valve NSN 4820-00-068-1610

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 4820-00-068-1610 NSN: 4820-00-068-1610

Features and Characteristics

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
20.0 cubic feet per minute
Maximum Operating Temp
406.0 degrees fahrenheit single response
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 2nd end
Features Provided
Valve stem lock shield
Maximum Operating Pressure
250.0 pounds per square inch single response
Thread Size
0.750 inches 2nd end
Opening Pressure Setting
15.0 pounds per square inch
Material
Steel stem
Material Specification
Qq-c-390, alloyb5/d/ federal specification single material response body
Media For Which Designed
Fuel/oil, hydrocarbon single response
Style Designator
Angle
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
000681610
NSN
4820000681610

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A22612
Cage Code:
58455
Status:
A
MSDS:
Part Number:
149-1/2IN
Cage Code:
14915
Status:
A
MSDS:
Part Number:
2550-1-2-15
Cage Code:
14959
Status:
A
MSDS:
Part Number:
149
Cage Code:
14959
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 4820-00-068-1610
What are the manufacturers of nsn 4820000681610?
Does this nsn 4820000681610 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820000681610
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 4820000681610 contain any precious metals?
No precious metal content.
Does nsn 4820000681610 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820000681610?
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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