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Home / Hardware / AN Fittings / Couplings/Sleeves /Stainless Steel Fitting AN819-4J
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Stainless Steel Fitting AN819-4J

22 Reviews 2 Answered Questions
$3.55/Piece
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Part# MS20819-4J
MFR Model# MS20819-4J
Size No.
Steel		Size No.
Alum		Size No.
SS		Tube O.D.
44D4J1/4

Overview

SLEEVE, Coupling

Black- Steel
Blue-Aluminum
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
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Reviews

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5 star

Nc D Verified Purchase

Stainless Steel Fitting AN819-4J
January 25, 2023

good product and fast shipping

Michael C Verified Purchase

Stainless Steel Fitting AN819-4J
December 1, 2022

worked fine

Christopher W
October 28, 2020

Product is as describe. Great quality.

Bens M
October 8, 2020

Perfect for connecting instruments to rigid or flexible lines.

David S
July 15, 2020

N

Byers C
June 30, 2020

Worked out great

Borden D
June 24, 2020

Excellent part !!

George K
November 8, 2019

I live in Michigan. My order was shipped from Georgia. It would be nice to order parts from Chicago.

Ross B
September 20, 2019

My airplane was AOG and this order allowed me to get it fixed. Thank you

Richard S
August 30, 2019

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.