NSN 4820-00-808-0526

Safety Relief Valve

FSC: 4820 NIIN: 008080526

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Product Characteristics

NSN:

4820008080526

Demilitarization:

INC:

05488

Shelf Life:

N/A

Thread Class:

3a 1st end

Thread Direction:

Right-hand 1st end

Disk Loading Method:

Spring

Valve Discharge Flow Rate:

4.0 gallons per minute

Connection Style:

G45 flareless (tube) 1st end

Connection Type:

Threaded external tube 1st end

Features Provided:

Valve stem lock shield and pressure tight outlet side

Thready Qty Per Inch (tpi):

18 1st end

Adjustable Pressure Range:

+66.0/+70.0 pounds per square inch

Maximum Operating Pressure:

75.0 pounds per square inch single response

Thread Size:

0.562 inches 1st end

Seat Angle:

12.0 degrees 1st end

Opening Pressure Setting:

59.0 pounds per square inch

Outside Diameter Tube Accommodated:

0.375 inches 1st end

Material:

Aluminum alloy seat

Media For Which Designed:

Hydraulic fluid, phosphate-ester base single response

Surface Treatment:

Anodize

Surface Treatment Specification:

Mil-a-8625, type 1 military specification single treatment response

Style Designator:

Err-090

Test Data Document:

36659-668413 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)

Thread Series Designator:

Unf 1st end

Part Numbers

668413-1
LOCKHEED MARTIN CORPORATION
668413-3
LOCKHEED MARTIN CORPORATION
P30-220
CIRCOR AEROSPACE, INC.
P36-220
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