Check Valve NSN 4820-00-450-1985

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: 4820-00-450-1985

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Features and Characteristics

Thread Class

3b 2nd end

Thread Direction

Right-hand all ends

Disk Loading Method

Spring

Connection Style

Gasket seal (boss) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded internal boss 2nd end

Mounting Position

Horizontal or vertical

Thread Size

0.562 inches all ends

Seat Angle

37.0 degrees 1st end

Outside Diameter Tube Accommodated

0.375 inches 1st end

Material

Aluminum alloy 2024 seat

Surface Treatment

Anodize

Surface Treatment Specification

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

Style Designator

Straight thru

Thread Series Designator

Unf all ends

FSC

4820 Nonpowered Valves

NIIN

004501985

NSN

4820004501985

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

864A6TBL6

Cage Code:

91816

Status:

MSDS:

Part Number:

CP00030-3

Cage Code:

81755

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 4820-00-450-1985

What are the manufacturers of nsn 4820004501985?

Circor Aerospace, Inc. (91816)
Lockheed Martin Corporation (81755)

Does this nsn 4820004501985 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004501985
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 4820004501985 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820004501985 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004501985?
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
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