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Safety Relief Valve NSN 4820-01-338-7425

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 4820-01-338-7425 NSN: 4820-01-338-7425

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
400.0 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
+1055.0/+1160.0 pounds per square inch
Outside Diameter
7.000 inches 1st end
Thickness
0.875 inches all ends
Bolt Hole Diameter
0.875 inches 2nd end
Bolt Circle Diameter
5.500 inches 1st end
Flange Face Design
Raised straight all ends
Raised Face Height
0.250 inches 2nd end
Raised Face Diameter
3.562 inches 1st end
Special Features
1.500 in. 600 lb flange inlet; 2.500 in. 150 lb flange outlet
Material
Stainless steel stem
Media For Which Designed
Steam single response
Style Designator
Err-090
FSC
4820 Nonpowered Valves
NIIN
013387425
NSN
4820013387425

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R10AH9K534-CH4
Cage Code:
34889
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 4820-01-338-7425
What are the manufacturers of nsn 4820013387425?
Does this nsn 4820013387425 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820013387425
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 4820013387425 contain any precious metals?
No precious metal content.
Does nsn 4820013387425 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820013387425?
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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