Safety Relief Valve NSN 4820-00-175-4796

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: 4820-00-175-4796

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Exposed spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Valve Discharge Flow Rate

39500.0 pounds per hour

Renewable Seat Ring Type

Threaded

Bolt Hole Quantity

9 1st 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

2.500 inches

Opening Pressure Setting

685.0 pounds per square inch

Outside Diameter

8.688 inches 1st end

Thickness

1.188 inches 2nd end

First Connection Face To Centerline Distance

5.968 inches

Bolt Hole Diameter

0.812 inches 2nd end

Second Connection Face To Centerline Distance

5.250 inches

Bolt Circle Diameter

7.125 inches 1st end

Flange Face Design

Plain 2nd end

Special Features

The end connection identified above as the second end is the valve inlet

Material

Stainless steel stem

Style Designator

Angle flanged ends

Reference Number Differentiating Characteristics

As differentiated by the valve discharge flow rate requirement

FSC

4820 Nonpowered Valves

NIIN

001754796

NSN

4820001754796

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

5VHY72

Cage Code:

38056

Status:

MSDS:

Part Number:

S4824H3182271

Cage Code:

80064

Status:

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 4820-00-175-4796

What are the manufacturers of nsn 4820001754796?

Does this nsn 4820001754796 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820001754796
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 4820001754796 contain any precious metals?
No precious metal content.

Does nsn 4820001754796 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820001754796?
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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