NSN 4820-00-820-7659

Safety Relief Valve

FSC: 4820 NIIN: 008207659

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Product Characteristics

NSN:

4820008207659

Demilitarization:

INC:

05488

Shelf Life:

N/A

Thread Class:

3a 1st end

Thread Direction:

Right-hand 1st end

Flow Control Device:

Poppet

Disk Loading Method:

Spring

Valve Discharge Flow Rate:

6.0 cubic feet per minute

Maximum Operating Temp:

-100.0 degrees fahrenheit 1st response400.0 degrees fahrenheit 2nd response

Connection Style:

G42 flared (tube) 1st end

Valve Operation Method:

Automatic

Connection Type:

Threaded external tube 1st end

Features Provided:

Pressure tight outlet side

Maximum Operating Pressure:

200.0 pounds per square inch single response

Thread Size:

0.437 inches 1st end

Seat Angle:

37.0 degrees 1st end

Opening Pressure Setting:

20.0 pounds per square inch

Outside Diameter Tube Accommodated:

0.250 inches 1st end

Material:

Aluminum alloy 2024 body

Media For Which Designed:

Oxygen, gaseous 3rd response

Style Designator:

Err-090

Thread Series Designator:

Unjf all ends

Part Numbers

524A-4D-20
CIRCOR AEROSPACE, INC.
524D-20
CIRCOR AEROSPACE, INC.

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

8481400000 - Safety or relief valves.

Professional Distribution

ITAR Registered
DDTC Registered
HAZMAT Certified
AS9120 Quality Standards
100% Quality Inspections

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Cage Codes

CIRCOR AEROSPACE, INC. - 91816