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Safety Relief Valve NSN 4820-01-117-1577

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 4820-01-117-1577 NSN: 4820-01-117-1577

  Stock Availability

NSN 4820011171577 availability
(as of 07/18/2023).

  • NS: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G9 plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Adjustable Pressure Range
+430.0/+650.0 pounds per square inch
Maximum Operating Pressure
650.0 pounds per square inch single response
Thread Size
0.250 inches 2nd end
Opening Pressure Setting
550.0 pounds per square inch
Material
Steel comp 416 flow control device
Material Specification
Qq-a-225/4, alloy 2014, t4 federal specification single material response body
Media For Which Designed
Oil, hydraulic 2nd response
Style Designator
Err-090
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
011171577
NSN
4820011171577

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5165982
Cage Code:
53711
Status:
A
MSDS:
Part Number:
621B-6-1/4-2
Cage Code:
09990
Status:
A
MSDS:
Part Number:
626B-6-1/4-2
Cage Code:
09990
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 4820-01-117-1577
What are the manufacturers of nsn 4820011171577?
Does this nsn 4820011171577 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011171577
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 4820011171577 contain any precious metals?
No precious metal content.
Does nsn 4820011171577 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011171577?
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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