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Safety Relief Valve NSN 4820-00-252-4852

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 4820-00-252-4852 NSN: 4820-00-252-4852

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
4 2nd end
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes 2nd end
Connection Type
Flange 1st end
Features Provided
Pressure tight outlet side
Valve Size
1.500 inches
Opening Pressure Setting
675.0 pounds per square inch
Outside Diameter
7.500 inches 1st end
Thickness
0.875 inches 2nd end
First Connection Face To Centerline Distance
5.718 inches
Bolt Hole Diameter
0.875 inches 2nd end
Second Connection Face To Centerline Distance
6.938 inches
Bolt Circle Diameter
6.000 inches 1st end
Flange Face Design
Plain 2nd end
Raised Face Height
0.062 inches 1st end
Raised Face Diameter
5.000 inches 1st end
Material
Stainless steel seat
Style Designator
Angle flanged ends
Reference Number Differentiating Characteristics
As differentiated by the opening pressure setting requirement
FSC
4820 Nonpowered Valves
NIIN
002524852
NSN
4820002524852

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
5VMA72
Cage Code:
38056
Status:
A
MSDS:
Part Number:
S5101F3233071
Cage Code:
80064
Status:
A
MSDS:
Part Number:
5VMA72 M0D
Cage Code:
16497
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 4820-00-252-4852
What are the manufacturers of nsn 4820002524852?
Does this nsn 4820002524852 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820002524852
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 4820002524852 contain any precious metals?
Precious metal content is unknown.
Does nsn 4820002524852 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820002524852?
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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