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Safety Relief Valve NSN 4820-01-022-5989

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 4820-01-022-5989 NSN: 4820-01-022-5989

Features and Characteristics

Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
220.0 pounds per hour
Connection Style
G46b plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Thread Size
0.750 inches all ends
Opening Pressure Setting
40.0 pounds per square inch
Material
Copper alloy
Style Designator
Err-090
Thread Series Designator
Npt all ends
FSC
4820 Nonpowered Valves
NIIN
010225989
NSN
4820010225989

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3/4 IN FIG 1 SET 40PSI
Cage Code:
01343
Status:
A
MSDS:
Part Number:
4-038702-3
Cage Code:
14579
Status:
A
MSDS:
Part Number:
3/4 IN FIG 112 SET 40PSI
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 4820-01-022-5989
What are the manufacturers of nsn 4820010225989?
Does this nsn 4820010225989 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010225989
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 4820010225989 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010225989 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010225989?
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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