NSN 4820-00-023-7140

Safety Relief Valve

FSC: 4820 NIIN: 000237140

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NSN 4820-00-023-7140 Description

3A 1ST end thread class, right-hand 1ST end , poppet flow control device, inside spring bonnet type, threaded bonnet attachment method.

Product Characteristics

NSN:

4820000237140

Demilitarization:

INC:

05488

Shelf Life:

N/A

Thread Class:

3a 1st end

Thread Direction:

Right-hand 1st end

Flow Control Device:

Poppet

Bonnet Type:

Inside spring

Bonnet Attachment Method:

Threaded

Disk Loading Method:

Spring

Connection Style:

Flared (tube) 1st end

Valve Operation Method:

Automatic

Features Provided:

Valve stem lock shield and bonnet packing and pressure tight outlet side

Thready Qty Per Inch (tpi):

18 1st end

Adjustable Pressure Range:

+41.0 to 47.0 pounds per square inch

Maximum Operating Pressure:

347.0 pounds per square inch single response

Thread Size:

0.437 inches 1st end

Seat Angle:

37.0 degrees 1st end

Outside Diameter Tube Accommodated:

0.250 inches 1st end

Material:

Aluminum alloy seat

Style Designator:

Straight thru

Thread Series Designator:

Unf 1st end

Part Numbers

658074-3
LOCKHEED MARTIN CORPORATION
P37-220
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

LOCKHEED MARTIN CORPORATION - 98897

CIRCOR AEROSPACE, INC. - 91816