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Home / Hardware / AN Fittings / Nuts /AN818 Nut Coupling
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AN818 Nut Coupling

112 Reviews 4 Answered Questions
From $1.15 to $79.75
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Size No.
Steel		 Size No.
Alum		 Size No.
SS		 Tube
O.D.		 Thread
Size		 Buy
Steel		 Buy Aluminum Buy Stainless
22D2J1/85/16-24$10.50
Quantity
$1.22
Quantity
--
33D3J3/163/8-24$3.90
Quantity
$1.24
Quantity
--
44D4J1/47/16-20$2.75
Quantity
$1.15
Quantity
$4.90
Quantity
55D5J5/161/2-20$5.50
Quantity
$1.55
Quantity
--
66D6J3/89/16-18$4.35
Quantity
$1.55
Quantity
$5.95
Quantity
88D8J1/23/4-16$2.85
Quantity
$3.35
Quantity
$7.50
Quantity
1010D10J5/87/8-14$11.95
Quantity
$4.35
Quantity
$10.60
Quantity
1212D12J3/41-1/16-12$79.75
Quantity
$7.50
Quantity
$11.50
Quantity
1616D16J11-5/16-12--$12.50
Quantity
$17.85
Quantity
Subtotal $0.00
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Overview

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

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Jeff G Verified Purchase

AN Fitting AN818-3D Nut
April 23, 2025

great product

Sel-tech Verified Purchase

AN Fitting AN818-4D Nut
April 1, 2025

Benjamin K Verified Purchase

AN818-6D AN Fitting Nut
February 16, 2025

We received all items in good order in an expeditious manner.

Southwest F Verified Purchase

AN818-6D AN Fitting Nut
February 14, 2025

item as described

Michael C Verified Purchase

AN Fitting AN818-4D Nut
December 27, 2024

Standard AN fitting,nothing to review

Abbas N Verified Purchase

AN Fitting AN818-2D Nut
December 20, 2024

Good quality, and the shipping was fast!!

Mark P Verified Purchase

AN818-6D AN Fitting Nut
November 1, 2024

Golden E Verified Purchase

AN Fitting AN818-3D Nut
October 1, 2024

Golden E Verified Purchase

AN Fitting AN818-2D Nut
October 1, 2024

Golden E Verified Purchase

AN818-6D AN Fitting Nut
October 1, 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: Is there a C-O-C statement on the packing slip for AN-818-8D nuts?

Every invoice has a general Certificate of Conformance, but if a manufacturer cert is required, you must request at the time of order and there is a charge for the paperwork.

Q: What is the weight of the AN818-6D?

The weight of AN818-6D is approximately .056 lbs.

Q: Do the AN818 coupling nuts have pre-drilled holes for safety wiring?

No, these do not have any pre-drilled holes for safety wiring.

Q: Do these AN818 fittings come with the internal stop that you slide over the tubing before flaring?

This is the nut only. The sleeve part number is AN819, add dash number for size and material.

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