NSN 4820-00-857-8247

Check Valve

FSC: 4820 NIIN: 008578247

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Product Characteristics

NSN:

4820008578247

Demilitarization:

INC:

05487

Shelf Life:

N/A

Thread Class:

3a 1st end

Thread Direction:

Right-hand 1st end

Flow Control Device:

Poppet

Disk Loading Method:

Spring

Connection Style:

Flared (tube) 1st end

Connection Type:

Threaded external tube 1st end

Mounting Position:

Horizontal

Thready Qty Per Inch (tpi):

20 1st end

Maximum Operating Pressure:

3000.0 pounds per square inch single response

Thread Size:

0.438 inches 1st end

Seat Angle:

37.0 degrees 1st end

Outside Diameter Tube Accommodated:

0.250 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:

Straight thru

Test Data Document:

36659-668455 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

668455
LOCKHEED MARTIN CORPORATION
668455-1
LOCKHEED MARTIN CORPORATION
P6-300
CIRCOR AEROSPACE, INC.

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

8481309000 - Check valves of materials other than copper, iron or steel.

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