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Safety Relief Valve NSN 4820-01-173-4112

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 4820-01-173-4112 NSN: 4820-01-173-4112

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Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
168.0 gallons per minute
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
1.500 inches
Adjustable Pressure Range
+30.0/+50.0 pounds per square inch
Opening Pressure Setting
300.0 pounds per square inch
Outside Diameter
6.000 inches 1st end
Thickness
0.500 inches 1st end
First Connection Face To Centerline Distance
4.312 inches
Bolt Hole Diameter
0.750 inches 1st end
Second Connection Face To Centerline Distance
3.875 inches
Bolt Circle Diameter
4.750 inches all ends
Flange Face Design
Plain all ends
Material
Rubber butadiene-acrylonitrile class nbr flow control device
Media For Which Designed
Water, salt single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
011734112
NSN
4820011734112

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
S1384-1 1/2X2IN
Cage Code:
35795
Status:
A
MSDS:
Part Number:
S1384-1 1/2X2INSS30T50PSI
Cage Code:
35795
Status:
A
MSDS:
Part Number:
C3429
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 4820-01-173-4112
What are the manufacturers of nsn 4820011734112?
Does this nsn 4820011734112 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011734112
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 4820011734112 contain any precious metals?
No precious metal content.
Does nsn 4820011734112 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011734112?
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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