NSN 4820-01-293-2440

Safety Relief Valve

FSC: 4820 NIIN: 012932440

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Product Characteristics

NSN:

4820012932440

Demilitarization:

INC:

05488

Shelf Life:

N/A

Thread Class:

3b 2nd end

Thread Direction:

Right-hand all ends

Flow Control Device:

Poppet

Maximum Operating Temp:

275.0 degrees fahrenheit single response

Connection Style:

G43 external seat for gasket seal (boss) 1st end

Valve Operation Method:

Automatic

Connection Type:

Threaded internal boss 2nd end

Thready Qty Per Inch (tpi):

20 1st end

Adjustable Pressure Range:

+10.0/+2400.0 pounds per square inch

Maximum Operating Pressure:

2500.0 pounds per square inch single response

Thread Size:

0.438 inches all ends

Seat Angle:

90.0 degrees 1st end

Opening Pressure Setting:

400.0 pounds per square inch

Material:

Aluminum alloy 2024 body

Media For Which Designed:

Helium 5th response

Style Designator:

Err-090

Thread Series Designator:

Unj 1st end

Part Numbers

5177A4TB-400
CIRCOR AEROSPACE, INC.
D952 PIECE 69
RIX INDUSTRIES

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

RIX INDUSTRIES - 28953