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Safety Relief Valve NSN 4820-01-251-7620

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 4820-01-251-7620 NSN: 4820-01-251-7620

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Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
Maximum Operating Temp
250.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
3.000 inches
Adjustable Pressure Range
+59.0/+72.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
7.688 inches 1st end
Thickness
0.500 inches all ends
First Connection Face To Centerline Distance
5.875 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
6.125 inches
Bolt Circle Diameter
6.562 inches 1st end
Flange Face Design
Plain all ends
Material
Copper body and tin alloy body
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
Furnished Items And Quantity
1 lever
FSC
4820 Nonpowered Valves
NIIN
012517620
NSN
4820012517620

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BASGG05SKM
Cage Code:
5P967
Status:
A
MSDS:
Part Number:
R10AL2N212
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 4820-01-251-7620
What are the manufacturers of nsn 4820012517620?
Does this nsn 4820012517620 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012517620
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 4820012517620 contain any precious metals?
No precious metal content.
Does nsn 4820012517620 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012517620?
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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