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3 Ati To 3-1/8 Raised Face Cover Reducer Plate Mk642

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Part# 10-00351
MFR Model# MK-642


3 ATI to 3-1/8" adapter. Adapts 3 ATI hole to standard 3-1/8", .125 ,5052 billet aluminum, 6/32 nut inserts .075 Depth for flush look.

CNC Machined from aircraft grade aluminum. The adapter face is raised .075" to give the flush panel look. Easy installation.

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Quality is grea

Walter D
January 20, 2021

Very high quality product. Fit existing hole in panel very well. No trimming required. Just shot some black paint on it as it comes bare aluminum. Would highly recommend over the two-piece solutions because this has nutserts already installed, which makes installation easy (no reaching behind to hold tiny washers and nuts.

Ben L
August 24, 2018

Eddie C
March 12, 2017

Good quality, but may need trimming to fit in some instances where other 3ATI-sized instruments are in use around the place you plan to use it. Disc grinder did a good job trimming down the sides. Very good surfaces for grounding on both sides of the plate.

John F
October 26, 2017

Good fit and flush to the panel. A little paint and it looks fine.

Robert M
December 29, 2020


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.

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