Check Valve NSN 4820-00-257-4689

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: 4820-00-257-4689

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Features and Characteristics

Thread Class

3b 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Connection Style

Gasket seal (boss) 1st end

Valve Operation Method

Automatic

Connection Type

Threaded internal boss 1st end

Mounting Position

Horizontal or vertical

Thready Qty Per Inch (tpi)

18 1st end

Thread Size

0.562 inches 1st end

Material

Aluminum alloy seat

Surface Treatment

Anodize

Style Designator

Straight thru

Thread Series Designator

Unf 1st end

FSC

4820 Nonpowered Valves

NIIN

002574689

NSN

4820002574689

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

651005

Cage Code:

77445

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 4820-00-257-4689

What are the manufacturers of nsn 4820002574689?

United Technologies Corporation (77445)

Does this nsn 4820002574689 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820002574689
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 4820002574689 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820002574689 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820002574689?
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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