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Safety Relief Valve NSN 4820-01-455-0641

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 4820-01-455-0641 NSN: 4820-01-455-0641

Features and Characteristics

Thread Class
3b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
350.0 degrees fahrenheit single response
Minimum Operating Temp
-20.0 degrees fahrenheit
Connection Style
G9 plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal tube all ends
Maximum Operating Pressure
10500.0 pounds per square inch single response
Thread Size
0.750 inches all ends
Opening Pressure Setting
2800.0 pounds per square inch
Outside Diameter Tube Accommodated
0.500 inches all ends
Special Features
Viton o-ring, stainless steel seat and spring included in high pressure relief valve
Material
Stainless steel body
Media For Which Designed
Air single response
Style Designator
Err-090
Thread Series Designator
Unf all ends
FSC
4820 Nonpowered Valves
NIIN
014550641
NSN
4820014550641

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5332T-8BB-2800
Cage Code:
91816
Status:
A
MSDS:
Part Number:
5793190 FIND 102
Cage Code:
31442
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 4820-01-455-0641
What are the manufacturers of nsn 4820014550641?
Does this nsn 4820014550641 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014550641
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 4820014550641 contain any precious metals?
No precious metal content.
Does nsn 4820014550641 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014550641?
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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