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Home / Hardware / AN Fittings / Couplings/Sleeves /AN FITTINGS AN819-4D SLEEVE
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AN FITTINGS AN819-4D SLEEVE

39 Reviews 2 Answered Questions
$0.79/Piece
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Part# AN819-4D
MFR Model# MS20819-4D
Size No.
Steel		Size No.
Alum		Size No.
SS		Tube O.D.
44D4J1/4

Overview

SLEEVE, Coupling

Black- Steel
Blue-Aluminum

Reviews

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Ditto.

John A Verified Purchase

AN FITTINGS AN819-4D SLEEVE
April 2, 2024

Silver S Verified Purchase

AN FITTINGS AN819-4D SLEEVE
January 29, 2024

Great quality at a reasonable price.

James M Verified Purchase

AN FITTINGS AN819-4D SLEEVE
January 23, 2024

Western N Verified Purchase

AN FITTINGS AN819-4D SLEEVE
December 5, 2023

Robert C Verified Purchase

AN FITTINGS AN819-4D SLEEVE
October 4, 2023

Chip B Verified Purchase

AN FITTINGS AN819-4D SLEEVE
July 27, 2023

Quality product at a good price

Danny D Verified Purchase

AN FITTINGS AN819-4D SLEEVE
May 19, 2023

Tarrant C Verified Purchase

AN FITTINGS AN819-4D SLEEVE
May 17, 2023

High quality and anodized same as AN818

Steve L Verified Purchase

AN FITTINGS AN819-4D SLEEVE
May 5, 2023

Perfect

Cain A Verified Purchase

AN FITTINGS AN819-4D SLEEVE
April 1, 2023

Q&A

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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Are the AN819 sleeves required with the AN818 flare nuts? I'm thinking that they are not required. The AN818 flare nuts already the 37 degree flare as an integral part of the nut itself - right? If so, how are the AN819 sleeves used?

The AN818 & AN819 fittings work together to make a line assembly with a metal tube. They must be used together at the end of a flared tube to seal the line. The AN818 does NOT have the 37 degree flare to seal the line.

Q: Are these AN819 sleeves sealed at the end and are these used with AN818 to cap the lines?

No, the AN819 are open on both ends. AN819 and AN818 fittings work together to make a line assembly with metal tubing.

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