Safety Relief Valve NSN 4820-01-261-4128

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: 4820-01-261-4128

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Features and Characteristics

Flow Control Device

Disk

Bonnet Type

Inside screw

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Bolt Hole Quantity

4 all ends

Maximum Operating Temp

250.0 degrees fahrenheit single response

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Valve Size

3.000 inches

Adjustable Pressure Range

+18.0/+22.0 pounds per square inch

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

7.500 inches all ends

Thickness

0.938 inches all ends

First Connection Face To Centerline Distance

5.062 inches

Bolt Hole Diameter

0.750 inches all ends

Second Connection Face To Centerline Distance

5.062 inches

Bolt Circle Diameter

6.000 inches all ends

Flange Face Design

Raised straight all ends

Raised Face Height

0.062 inches all ends

Raised Face Diameter

5.000 inches all ends

Material

Stainless steel stem

Material Specification

Qq-n-281 federal specification single material response seat

Media For Which Designed

Water-oil-gas single response

Style Designator

Err-090

Furnished Items And Quantity

1 lever

FSC

4820 Nonpowered Valves

NIIN

012614128

NSN

4820012614128

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

R10AL5L506-CS4

Cage Code:

34889

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 4820-01-261-4128

What are the manufacturers of nsn 4820012614128?

Hunt Valve Company Inc (34889)

Does this nsn 4820012614128 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820012614128
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 4820012614128 contain any precious metals?
No precious metal content.

Does nsn 4820012614128 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820012614128?
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
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