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Home / Hardware / AN Fittings / Couplings/Sleeves /AN819 Sleeve Coupling
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AN819 Sleeve Coupling

119 Reviews 2 Answered Questions
From $0.89 to $9.85
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Size No.
Steel		 Size No.
Alum		 Size No.
SS		 Tube O.D. Buy Steel Buy Aluminum Buy Stainless
22D--1/8$2.53
Quantity
$0.89
Quantity
--
33D--3/16$1.30
Quantity
$0.99
Quantity
--
44D4J1/4$1.66
Quantity
$0.99
Quantity
$3.35
Quantity
55D--5/16$9.85
Quantity
$1.50
Quantity
--
66D6J3/8$2.49
Quantity
$1.36
Quantity
$5.40
Quantity
88D8J1/2$8.55
Quantity
$1.75
Quantity
$7.50
Quantity
1010D10J5/8$4.95
Quantity
$1.75
Quantity
$9.50
Quantity
1212D12J3/4$5.85
Quantity
$4.55
Quantity
$9.60
Quantity
Subtotal $0.00
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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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Good product and came as advertised!

Daniel R Verified Purchase

AN Fitting AN819-4D Sleeve
June 19, 2025

fit well

Steve G Verified Purchase

AN Fitting AN819-4D Sleeve
June 13, 2025

Jeff G Verified Purchase

AN819-6D AN Fitting Sleeve
April 23, 2025

great product

Sel-tech Verified Purchase

AN Fitting AN819-4D Sleeve
April 1, 2025

great product

Sel-tech Verified Purchase

AN819-6D AN Fitting Sleeve
April 1, 2025

These are fantastic. I plumbed my entire Chinook Plus 2 with these, other AN fittings, and 3/8 Versatube from Spruce. All of these components are rugged, easy to work with, and dependable.

Drew H Verified Purchase

AN819-6D AN Fitting Sleeve
April 1, 2025

Benjamin K Verified Purchase

AN819-6D AN Fitting Sleeve
February 16, 2025

item as described

Michael C Verified Purchase

AN Fitting AN819-4D Sleeve
December 27, 2024

Standard AN fitting must confirm there is nothing to review and I havent used. It.

Abbas N Verified Purchase

Fitting MS20819-2D Sleeve
December 20, 2024

Good bulkhead fitting for fuel line!

William P Verified Purchase

AN Fitting AN819-3D Sleeve
December 9, 2024

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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