Safety Relief Valve NSN 4820-01-068-2981

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: 4820-01-068-2981

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Features and Characteristics

Pipe Size Accommodated

0.250 inches all ends

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Maximum Operating Temp

150.0 degrees fahrenheit single response

End Application

Sturgeon class ss (637)

Connection Style

Socket with brazing ring err-100

Valve Operation Method

Automatic

Connection Type

Unthreaded internal pipe all ends

Features Provided

Pressure tight outlet side

Adjustable Pressure Range

+76.0/+105.0 pounds per square inch

Maximum Operating Pressure

440.0 pounds per square inch single response

Material

Steel comp 303 stem

Material Specification

Qq-n-281 federal specification single material response flow control device

Media For Which Designed

Water-oil-gas single response

Style Designator

Err-090

FSC

4820 Nonpowered Valves

NIIN

010682981

NSN

4820010682981

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

9663-20CS169-76

Cage Code:

01343

Status:

MSDS:

Part Number:

20CS169-1-4-76T105

Cage Code:

15187

Status:

MSDS:

Part Number:

D40HUU-06 1/4 IN

Cage Code:

5P967

Status:

MSDS:

Part Number:

9663-76T0105PSI

Cage Code:

15187

Status:

MSDS:

Part Number:

9663

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 4820-01-068-2981

What are the manufacturers of nsn 4820010682981?

Does this nsn 4820010682981 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820010682981
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 4820010682981 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820010682981 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820010682981?
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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