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Safety Relief Valve NSN 4820-00-871-7391

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 4820-00-871-7391 NSN: 4820-00-871-7391

Features and Characteristics

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Connection Style
Socket with brazing ring err-100
Valve Operation Method
Manual
Connection Type
Unthreaded internal pipe all ends
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+2301.0/+3600.0 pounds per square inch
Maximum Operating Pressure
3600.0 pounds per square inch single response
Material
Nickel alloy flow control device
Material Specification
Qq-c-390 federal specification single material response body
Media For Which Designed
Air single response
Style Designator
Err-090
Furnished Items And Quantity
2 nut
Nondefinitive Specification/std Data
A1 type and c class
Reference Number Differentiating Characteristics
As differentiated by pac cqcy
FSC
4820 Nonpowered Valves
NIIN
008717391
NSN
4820008717391

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
213569
Cage Code:
16497
Status:
A
MSDS:
Part Number:
MILV20065
Cage Code:
81349
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 4820-00-871-7391
What are the manufacturers of nsn 4820008717391?
Does this nsn 4820008717391 have a shelf life?
Yes. 60 mo. after cure date.
What is the formal definition of nsn 4820008717391
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 4820008717391 contain any precious metals?
No precious metal content.
Does nsn 4820008717391 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820008717391?
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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