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Safety Relief Valve NSN 4820-00-133-3457

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 4820-00-133-3457 NSN: 4820-00-133-3457

Features and Characteristics

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
8 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes 2nd end
Connection Type
Flange 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+140.0 to 150.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
7.687 inches 1st end
Thickness
1.062 inches 2nd end
Bolt Hole Diameter
0.562 inches 2nd end
Bolt Circle Diameter
6.562 inches 1st end
Flange Face Design
Plain 2nd end
Material
Nickel alloy flow control device
Style Designator
Angle
Reference Number Differentiating Characteristics
By the adjustable pressure range spring requirement
FSC
4820 Nonpowered Valves
NIIN
001333457
NSN
4820001333457

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
9507
Cage Code:
15187
Status:
A
MSDS:
Part Number:
9457ITEM124
Cage Code:
15187
Status:
A
MSDS:
Part Number:
9457REVAITEM124
Cage Code:
15187
Status:
A
MSDS:
Part Number:
9457REVAITEM12
Cage Code:
15187
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 4820-00-133-3457
What are the manufacturers of nsn 4820001333457?
Does this nsn 4820001333457 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820001333457
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 4820001333457 contain any precious metals?
No precious metal content.
Does nsn 4820001333457 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820001333457?
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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