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Safety Relief Valve NSN 4820-01-022-8593

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 4820-01-022-8593 NSN: 4820-01-022-8593

Features and Characteristics

Thread Class
2b all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
End Application
Forrestal class cv
Connection Style
G4 gasket sea (boss) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal boss all ends
Thready Qty Per Inch (tpi)
12 all ends
Adjustable Pressure Range
+2000.0/+3000.0 pounds per square inch
Thread Size
1.062 inches all ends
Material
Nickel alloy 400
Material Specification
Astm b164-61, class a assn standard single material response
Style Designator
Err-090
Thread Series Designator
Un all ends
FSC
4820 Nonpowered Valves
NIIN
010228593
NSN
4820010228593

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
20249-4-817
Cage Code:
01343
Status:
A
MSDS:
Part Number:
817-3-4IN2000T3
Cage Code:
01343
Status:
A
MSDS:
Part Number:
20249
Cage Code:
15187
Status:
A
MSDS:
Part Number:
20249-4-817-2500
Cage Code:
15187
Status:
A
MSDS:
Part Number:
817-3-4IN2000T3000PSI
Cage Code:
15187
Status:
A
MSDS:
Part Number:
D45MS-01-3/4-3/4
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
W112181
Cage Code:
0AT62
Status:
A
MSDS:
Part Number:
20249-4-87
Cage Code:
15187
Status:
A
MSDS:
Part Number:
D45MS-01 3/4
Cage Code:
65079
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 4820-01-022-8593
What are the manufacturers of nsn 4820010228593?
Does this nsn 4820010228593 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820010228593
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 4820010228593 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820010228593 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820010228593?
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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