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Safety Relief Valve NSN 4820-00-493-2911

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 4820-00-493-2911 NSN: 4820-00-493-2911

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Ball
Disk Loading Method
Spring
Connection Style
Plain (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thread Size
0.500 inches 2nd end
Seat Angle
30.0 degrees 1st end
Material
Steel
Surface Treatment
Phosphate
Style Designator
Angle
Thread Series Designator
Npt 2nd end
FSC
4820 Nonpowered Valves
NIIN
004932911
NSN
4820004932911

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
4L8546
Cage Code:
11083
Status:
A
MSDS:
Part Number:
4128546
Cage Code:
57217
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 4820-00-493-2911
What are the manufacturers of nsn 4820004932911?
Does this nsn 4820004932911 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004932911
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 4820004932911 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820004932911 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004932911?
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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