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Safety Relief Valve NSN 4820-00-043-3823

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 4820-00-043-3823 NSN: 4820-00-043-3823

Features and Characteristics

Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Air
Connection Type
Threaded internal pipe 2nd end
Thready Qty Per Inch (tpi)
14 2nd end
Adjustable Pressure Range
+45.0/+55.0 pounds per square inch
Maximum Operating Pressure
55.0 pounds per square inch single response
Thread Size
0.750 inches 2nd end
Opening Pressure Setting
50.0 pounds per square inch
Special Features
Lox clean per a/f packaging k3655-00887, amend no. 1, 12 dec 1963
Material
Copper alloy body
Media For Which Designed
Oxygen, liquid single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
FSC
4820 Nonpowered Valves
NIIN
000433823
NSN
4820000433823

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
80-4S-CS135
Cage Code:
01343
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 4820-00-043-3823
What are the manufacturers of nsn 4820000433823?
Does this nsn 4820000433823 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820000433823
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 4820000433823 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820000433823 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820000433823?
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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