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4820-00-683-8722

Check Valve

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Official Item Classification

Name
Check Valve
(NSN) National Stock Number
4820-00-683-8722
(FSG) Federal Supply Group
48 Valves
(FSC) Federal Supply Classification
4820 Nonpowered Valves
(INC) Item Name Code
05487
(FIIG) Federal Item Identification Guide
A530B0
Date
01/01/1963 (63 years ago)

right-hand 1st end thread direction, 0.250 inches 2nd end nominal pipe size accommodated, right-hand 2nd end thread direction, 0.250 inches 1st end nominal pipe size accommodated, poppet flow control device

Specs & Compatibility

Nominal Pipe Size Accommodated

0.250 inches 1st end

Nominal Pipe Size Accommodated

0.250 inches 2nd end

Thread Direction

right-hand 1st end

Thread Direction

right-hand 2nd end

Flow Control Device

poppet

Disk Loading Method

spring

Maximum Operating Temp

-40.0 fahrenheit 1st response

Maximum Operating Temp

250.0 fahrenheit 2nd response

End Item Identification

grumman a10 aircraft

Connection Style

plain (pipe) 2nd end

Connection Style

plain, optional end (pipe) 1st end

Valve Operation Method

automatic

Connection Type

threaded external pipe 2nd end

Connection Type

threaded internal pipe 1st end

Mounting Position

horizontal

Thread Quantity Per Inch

18 2nd end

Maximum Operating Pressure

5000.0 pounds per square inch single response

Nominal Thread Size

0.250 inches 1st end

Nominal Thread Size

0.250 inches 2nd end

Special Features

cracking pressure 2 - 4 psi

Material

copper alloy body

Material

rubber butadiene-acrylonitrile class nbr seat

Media For Which Designed

acetylene 1st response

Media For Which Designed

air 2nd response

Media For Which Designed

ammonia, liquid 4th response

Media For Which Designed

ammonia, gaseous 3rd response

Media For Which Designed

carbon dioxide 5th response

Style Designator

straight thru

Thread Series Designator

npt 2nd end

Thread Series Designator

npt 1st end

Replacement For

Part Number Description
4820-00-683-8721 No Name Available 12/01/2008

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005487

Related Hardware Products

Part Number Description
2320B2PM Check Valve
2320B2PM4 Check Valve
2349B-2PM Check Valve

Frequently Asked Questions

What is the FSCG of the NSN 4820-00-683-8722?
The FSCG of the NSN 4820-00-683-8722 is 4820
Does the NSN 4820-00-683-8722 have a Schedule B code assigned?
Yes, the Schedule B code is 8481301090
Does NSN 4820-00-683-8722 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-683-8722 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-683-8722 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-683-8722 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963