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Safety Relief Valve NSN 4820-01-235-1446

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 4820-01-235-1446 NSN: 4820-01-235-1446

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
180.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
1.250 inches
Adjustable Pressure Range
+90.0/+140.0 pounds per square inch
Maximum Operating Pressure
300.0 pounds per square inch single response
Outside Diameter
4.500 inches all ends
Thickness
0.812 inches all ends
First Connection Face To Centerline Distance
3.250 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
3.250 inches
Bolt Circle Diameter
3.375 inches all ends
Flange Face Design
Plain all ends
Special Features
Flanges modified for 250 psi
Material
Steel flow control device
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012351446
NSN
4820012351446

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1384 PL4142M0D
Cage Code:
35795
Status:
A
MSDS:
Part Number:
2385F727
Cage Code:
35795
Status:
A
MSDS:
Part Number:
C3457
Cage Code:
35795
Status:
A
MSDS:
Part Number:
C3457 PL4142MOD TO 250PSIFLGES
Cage Code:
35795
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 4820-01-235-1446
What are the manufacturers of nsn 4820012351446?
Does this nsn 4820012351446 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012351446
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 4820012351446 contain any precious metals?
No precious metal content.
Does nsn 4820012351446 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012351446?
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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