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Safety Relief Valve NSN 4820-01-225-3603

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 4820-01-225-3603 NSN: 4820-01-225-3603

Features and Characteristics

Flow Control Device
Disk
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Valve Size
2.500 inches
Adjustable Pressure Range
+1011.0/+1100.0 pounds per square inch
Outside Diameter
9.000 inches 2nd end
Thickness
1.125 inches 1st end
First Connection Face To Centerline Distance
6.750 inches
Bolt Hole Diameter
0.875 inches 1st end
Second Connection Face To Centerline Distance
6.125 inches
Bolt Circle Diameter
7.500 inches 2nd end
Flange Face Design
Raised straight all ends
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
6.188 inches 2nd end
Special Features
Valve is 26 in. Long and weighs 150.0 pounds
Material
Steel body
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
012253603
NSN
4820012253603

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
DB-50J X NMP116
Cage Code:
75954
Status:
A
MSDS:
Part Number:
DB-50JX NMP1161 1011T1100PSI
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 4820-01-225-3603
What are the manufacturers of nsn 4820012253603?
Does this nsn 4820012253603 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012253603
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 4820012253603 contain any precious metals?
No precious metal content.
Does nsn 4820012253603 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012253603?
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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