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Safety Relief Valve NSN 4820-00-407-7550

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 4820-00-407-7550 NSN: 4820-00-407-7550

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Packing retaining
Connection Style
Gasket sea (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal boss 1st end
Maximum Operating Pressure
90.0 pounds per square inch single response
Thread Size
1.000 inches 2nd end
Criticality Code Justification
Zzzy
Material
Copper alloy body
Style Designator
Angle
Thread Series Designator
Npt 1st end
Reference Number Differentiating Characteristics
Cleaning, packaging, and marking iaw mil-std-1330d
FSC
4820 Nonpowered Valves
NIIN
004077550
NSN
4820004077550

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3200775-3
Cage Code:
11243
Status:
A
MSDS:
Part Number:
3200775-3CP
Cage Code:
03950
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 4820-00-407-7550
What are the manufacturers of nsn 4820004077550?
Does this nsn 4820004077550 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820004077550
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 4820004077550 contain any precious metals?
No precious metal content.
Does nsn 4820004077550 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820004077550?
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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