NSN 4820-01-189-8525

Safety Relief Valve

FSC: 4820 NIIN: 011898525

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Product Characteristics

NSN:

4820011898525

Demilitarization:

INC:

05488

Shelf Life:

N/A

Thread Class:

3a all ends

Thread Direction:

Right-hand all ends

Flow Control Device:

Poppet

Bonnet Type:

Inside spring

Bonnet Attachment Method:

Integral

Disk Loading Method:

Spring

Maximum Operating Temp:

400.0 degrees fahrenheit 2nd response

Connection Style:

G46a plain (tube) all ends

Valve Operation Method:

Automatic

Connection Type:

Threaded external tube all ends

Thready Qty Per Inch (tpi):

20 all ends

Maximum Operating Pressure:

200.0 pounds per square inch single response

Thread Size:

0.438 inches all ends

Opening Pressure Setting:

130.0 pounds per square inch

Special Features:

Deflector cap

Material:

Silicon seat

Material Specification:

Qq-a-225/6 federal specification single material response body

Media For Which Designed:

Nitrogen, gaseous 5th response

Surface Treatment:

Anodize

Surface Treatment Specification:

Mil-a-8625a military specification single treatment response

Style Designator:

Err-090

Thread Series Designator:

Unjf all ends

Furnished Items And Quantity:

1 deflector cap

Part Numbers

D520A-4D-130
CIRCOR AEROSPACE, INC.
D524A-4D-130
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