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Safety Relief Valve NSN 4820-01-566-4191

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 4820-01-566-4191 NSN: 4820-01-566-4191

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Features and Characteristics

Bolt Hole Quantity
8 all ends
Maximum Operating Temp
180.0 degrees fahrenheit single response
End Application
New construction ddg73
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
4.000 inches
Adjustable Pressure Range
+9.0/+15.0 pounds per square inch
Opening Pressure Setting
11.0 pounds per square inch
Outside Diameter
9.000 inches all ends
Thickness
1.062 inches all ends
First Connection Face To Centerline Distance
5.688 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
5.688 inches
Bolt Circle Diameter
7.500 inches all ends
Flange Face Design
Plain all ends
Material
Rubber flow control device
Media For Which Designed
Water, fresh single response
Style Designator
Err-090
Furnished Items And Quantity
1 lever
FSC
4820 Nonpowered Valves
NIIN
015664191
NSN
4820015664191

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
YB2385M682
Cage Code:
35795
Status:
A
MSDS:
Part Number:
E3829 4IN 9-15PSI 150LB
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 4820-01-566-4191
What are the manufacturers of nsn 4820015664191?
Does this nsn 4820015664191 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820015664191
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 4820015664191 contain any precious metals?
No precious metal content.
Does nsn 4820015664191 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820015664191?
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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