Check Valve NSN 4820-00-857-8247

Item Description

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

NSN: 4820-00-857-8247

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Features and Characteristics

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

FSC

4820 Nonpowered Valves

NIIN

008578247

NSN

4820008578247

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

P6-300

Cage Code:

91816

Status:

MSDS:

Part Number:

668455-1

Cage Code:

98897

Status:

MSDS:

Part Number:

668455

Cage Code:

98897

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481309000
NAICS: 332911
SITC: 74730
Description: Check valves of materials other than copper, iron or steel
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-857-8247

What are the manufacturers of nsn 4820008578247?

Circor Aerospace, Inc. (91816)
Lockheed Martin Corporation (98897)

Does this nsn 4820008578247 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820008578247
A valve permitting flow in one direction only. it does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. it may be inline or cartridge (manifold) design.

Does nsn 4820008578247 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820008578247 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820008578247?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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