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Safety Relief Valve NSN 4820-01-204-9475

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 4820-01-204-9475 NSN: 4820-01-204-9475

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Bolt Hole Quantity
8 1st end
Valve Operation Method
Automatic
Flange Shape
Round with holes 2nd end
Valve Size
2.500 inches
Adjustable Pressure Range
+929.0/+1010.0 pounds per square inch
Maximum Operating Pressure
1480.0 pounds per square inch single response
Outside Diameter
9.000 inches 1st end
Thickness
0.875 inches 1st end
First Connection Face To Centerline Distance
6.750 inches
Bolt Hole Diameter
0.750 inches 2nd end
Second Connection Face To Centerline Distance
6.125 inches
Bolt Circle Diameter
7.500 inches 1st end
Flange Face Design
Raised straight 2nd end
Raised Face Height
0.062 inches 2nd end
Raised Face Diameter
4.125 inches 2nd end
Material
Stainless steel stem
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012049475
NSN
4820012049475

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
D50J-S0-21-J
Cage Code:
01343
Status:
A
MSDS:
Part Number:
SD-120 D-50J929T1010PSI
Cage Code:
75954
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 4820-01-204-9475
What are the manufacturers of nsn 4820012049475?
Does this nsn 4820012049475 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012049475
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 4820012049475 contain any precious metals?
No precious metal content.
Does nsn 4820012049475 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012049475?
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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