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Safety Relief Valve NSN 4820-01-278-6173

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 4820-01-278-6173 NSN: 4820-01-278-6173

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Renewable Seat Ring Type
Bolted
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
450.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.000 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
6.000 inches all ends
Thickness
0.500 inches all ends
First Connection Face To Centerline Distance
4.000 inches
Bolt Hole Diameter
0.750 inches all ends
Second Connection Face To Centerline Distance
2.625 inches
Bolt Circle Diameter
4.750 inches all ends
Flange Face Design
Plain all ends
Special Features
Extended stem
Material
Rubber butadiene-acrylonitrile class nbr flow control device
Media For Which Designed
Water-oil-gas single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012786173
NSN
4820012786173

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
128 2IN 90T140PSI PL-4123
Cage Code:
35795
Status:
A
MSDS:
Part Number:
1382 2IN 90T140PSI,PL-4123
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 4820-01-278-6173
What are the manufacturers of nsn 4820012786173?
Does this nsn 4820012786173 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012786173
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 4820012786173 contain any precious metals?
No precious metal content.
Does nsn 4820012786173 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012786173?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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