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Safety Relief Valve NSN 4820-01-261-2463

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 4820-01-261-2463 NSN: 4820-01-261-2463

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
400.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
0.750 inches
Adjustable Pressure Range
+10.0/+12.0 pounds per square inch
Maximum Operating Pressure
1440.0 pounds per square inch single response
Outside Diameter
3.875 inches 2nd end
Thickness
0.562 inches 1st end
First Connection Face To Centerline Distance
3.625 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
3.562 inches
Bolt Circle Diameter
3.125 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
1.688 inches 2nd end
Special Features
Inlet 0.750 in., outlet 1.000 in.
Material
Steel body
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012612463
NSN
4820012612463

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R10AE5F503-CM1-
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D49671PARTR10AE5F503-CM1
Cage Code:
34889
Status:
A
MSDS:
Part Number:
D49671
Cage Code:
34889
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 4820-01-261-2463
What are the manufacturers of nsn 4820012612463?
Does this nsn 4820012612463 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012612463
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 4820012612463 contain any precious metals?
No precious metal content.
Does nsn 4820012612463 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012612463?
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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