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Home / Hardware / AN Fittings / Nuts /AN818-4 Steel Nut
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AN818-4 Steel Nut

19 Reviews 4 Answered Questions
$2.93/Piece
Price Includes GST
Quantity
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Part# AN818-4
MFR Model# AN818-4
Size No.
Steel		Size No.
Alum		Size No.
SS		Tube
O.D.		Thread
Size
44D4J1/47/16-20

Overview

AN Nut Couplings

Reviews

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I used this as part of a primer line installation on a 0-320 Lycoming. It worked well, the challenge was attaching the cone to the copper tubing, a machine shop had to braze it. The nozzle ports needed a 1/8 npt tap run down the cylinder to allow enough thread engagement for the nozzle. The copper tubing is challenging to flare since it is so small, re-doing a flare was needed to make a leak free connection.

David S
December 31, 2020

Good service....Denis..

Denis L
December 29, 2020

worked good

Christopher W
October 28, 2020

worked good

Christopher W
October 28, 2020

As ordered

Byers C
July 9, 2020

Great quality

Jerry C
January 16, 2020

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

Ross B
September 20, 2019

Philip C
April 4, 2019

Great quality

Philip C
March 16, 2019

Fits perfectly

Larry G
October 22, 2018

Q&A

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Please note, Aircraft Spruce Australia'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 Australia 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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