Safety Relief Valve NSN 4820-00-289-4346

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: 4820-00-289-4346

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Exposed spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Bolt Hole Quantity

4 1st end

Maximum Operating Temp

650.0 degrees fahrenheit single response

Valve Operation Method

Automatic or manual

Flange Shape

Round with holes 1st end

Connection Type

Flange 1st end

Adjustable Pressure Range

+18.0/+32.0 pounds per square inch

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

4.250 inches 1st end

Thickness

0.500 inches 1st end

First Connection Face To Centerline Distance

3.562 inches

Bolt Hole Diameter

0.562 inches 1st end

Second Connection Face To Centerline Distance

4.688 inches

Bolt Circle Diameter

3.125 inches 1st end

Flange Face Design

Raised straight 1st end

Raised Face Height

0.062 inches 1st end

Raised Face Diameter

2.000 inches 1st end

Material

Stainless steel stem

Media For Which Designed

Steam single response

Style Designator

Angle flanged ends

FSC

4820 Nonpowered Valves

NIIN

002894346

NSN

4820002894346

Manufacturer Part Numbers

Part numbers registered to this national stock number.

No part numbers found for this NSN.

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 4820-00-289-4346

What are the manufacturers of nsn 4820002894346?

Does this nsn 4820002894346 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820002894346
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 4820002894346 contain any precious metals?
No precious metal content.

Does nsn 4820002894346 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820002894346?
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:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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