NSN 4820-01-051-8215

Safety Relief Valve

FSC: 4820 NIIN: 010518215

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Product Characteristics

NSN:

4820010518215

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:

G46a plain (tube) 1st end

Valve Operation Method:

Automatic

Connection Type:

Threaded external tube 1st end

Adjustable Pressure Range:

+25.0/+75.0 pounds per square inch

Maximum Operating Pressure:

200.0 pounds per square inch single response

Thread Size:

0.563 inches 1st end

Opening Pressure Setting:

50.0 pounds per square inch

Material:

Rubber butadiene-acrylonitrile class nbr seat

Material Specification:

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

Media For Which Designed:

Helium 5th response

Surface Treatment:

Anodize

Surface Treatment Specification:

Mil-a-8625a type i military specification single treatment response

Style Designator:

Err-090

Thread Series Designator:

Unjf 1st end

Furnished Items And Quantity:

1 deflector cap

Part Numbers

3978
HOWELL LABORATORIES, INC.
3978-5-50
HOWELL LABORATORIES, INC.
D559A-6D-50
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

HOWELL LABORATORIES, INC. - 22501

CIRCOR AEROSPACE, INC. - 91816