NSN 4820-00-420-5485

Safety Relief Valve

FSC: 4820 NIIN: 004205485

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Product Characteristics

NSN:

4820004205485

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

Maximum Operating Temp:

250.0 degrees fahrenheit single response

Connection Style:

External seat for gasket seal (boss) 1st end

Valve Operation Method:

Automatic

Connection Type:

Threaded external boss 1st end

Adjustable Pressure Range:

+10.0/+30.0 pounds per square inch

Maximum Operating Pressure:

200.0 pounds per square inch single response

Thread Size:

0.437 inches 1st end

Opening Pressure Setting:

25.0 pounds per square inch

Outside Diameter Tube Accommodated:

0.250 inches 1st end

Material:

Aluminum alloy 2024 seat

Material Specification:

Qq-a-225/6, alloy 2024, t4 federal specification single material response seat

Media For Which Designed:

Ammonia, gaseous 5th response

Surface Treatment:

Anodize

Style Designator:

Straight through w/baffle

Thread Series Designator:

Unf 1st end

Part Numbers

D537A4D25
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