Restrictor Check Valve NSN 4820-00-485-7841

Item Description

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

NSN: 4820-00-485-7841

Stock Availability

NSN 4820004857841 availability
(as of 06/22/2022).

NE: 1
AR: 1
NS: 15
SV: 1

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Related NSN

Features and Characteristics

Thread Class

3b 1st end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Maximum Operating Temp

275.0 degrees fahrenheit single response

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)

20 1st end

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.437 inches 2nd end

Outside Diameter Tube Accommodated

0.250 inches 2nd end

Special Features

The end connection identified above as the second end is the valve inlet

Material

Aluminum alloy 518.0 body

Surface Treatment

Anodize

Style Designator

Straight thru

Thread Series Designator

Unjf 1st end

FSC

4820 Nonpowered Valves

NIIN

004857841

NSN

4820004857841

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

A51H209-3

Cage Code:

61174

Status:

MSDS:

Part Number:

46130

Cage Code:

99643

Status:

MSDS:

Part Number:

A51H9209-3

Cage Code:

26512

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 4820-00-485-7841

What are the manufacturers of nsn 4820004857841?

Northrop Grumman Systems Corporation (61174)
Eaton Corporation (99643)
Northrop Grumman Systems Corporation (26512)

Does this nsn 4820004857841 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004857841
A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. it does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Does nsn 4820004857841 contain any precious metals?
No precious metal content.

Does nsn 4820004857841 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004857841?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

20520

FIIG:

A530B0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
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