Safety Relief Valve NSN 4820-01-437-4802

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: 4820-01-437-4802

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Bolt Hole Quantity

4 all ends

Maximum Operating Temp

100.0 degrees fahrenheit single response

End Application

Wasp class lhd

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Facility

Bracket

Valve Size

0.500 inches

Maximum Operating Pressure

285.0 pounds per square inch single response

Opening Pressure Setting

55.0 pounds per square inch

Outside Diameter

3.500 inches all ends

Thickness

0.375 inches all ends

First Connection Face To Centerline Distance

1.670 inches

Bolt Hole Diameter

0.625 inches all ends

Second Connection Face To Centerline Distance

1.670 inches

Bolt Circle Diameter

2.375 inches all ends

Flange Face Design

Raised straight all ends

Raised Face Height

0.062 inches all ends

Raised Face Diameter

1.375 inches all ends

Special Features

2771

Material

Steel uns j03002 body

Style Designator

Err-090

Furnished Items And Quantity

4 nut

FSC

4820 Nonpowered Valves

NIIN

014374802

NSN

4820014374802

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

2038101E0055

Cage Code:

15187

Status:

MSDS:

Part Number:

20381 ASSY 20381

Cage Code:

15187

Status:

MSDS:

Part Number:

20381 ASSY 2038101E0055

Cage Code:

01343

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 4820-01-437-4802

What are the manufacturers of nsn 4820014374802?

Pentair Valves & Controls Us Lp (15187)
Anderson Greenwood Lp (01343)

Does this nsn 4820014374802 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014374802
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 4820014374802 contain any precious metals?
No precious metal content.

Does nsn 4820014374802 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014374802?
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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