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Insulated Washers For Panel Jacks

26 Reviews 3 Answered Questions
From $0.31 to $0.62
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Description Part Number Price Buy
Insulated Flat Washer (SWC S1028) Tan
04-00975
$0.31
Quantity
Insulated Shoulder Washer (SWC S1029) Black
04-00976
$0.62
Quantity
Subtotal $0.00
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Overview

Insulated Flat Washers
Insulated flat washer for headset. microphone jacks. P/N 04-00975 1/32" x 5/8" OD x 3/8" ID

Insulated Shoulder Washers
Insulated shoulder washer for headset/ microphone jacks. P/N 04-00976 .032/.032 x 5/8" OD x .387 ID x .437 ID/step
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Reviews

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These work as expected. I get zero noise in my headsets with the jacks isolated. Took me a bit to figure out that you need a 7/16 hole for the shoulder to fit through the hole. At first I tried 27/64 drill bit, but that was too small. Next step was 7/16.

Scott R Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
December 21, 2021

David W Verified Purchase

SWITCHCRAFT INSULATED FLAT WASHER S1028
October 29, 2021

The insulated shoulder washer and insulated flat washer combination make it easy to install Switchcraft headset jacks that are electrically insulated from the airframe and therefore more likely to provide clear audio reception and transmission, for pennies (but a lot in shipping, Aircraft Spruce!)

David W Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
October 29, 2021

I dont know how I lose these when removing interior panels, but I do... Gave in and bought a bunch to have on hand.

James H Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
October 27, 2021

Paradise P Verified Purchase

SWITCHCRAFT INSULATED FLAT WASHER S1028
July 7, 2021

Paradise P Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
July 7, 2021

Danny P Verified Purchase

SWITCHCRAFT INSULATED FLAT WASHER S1028
July 5, 2021

Danny P Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
July 5, 2021

This is what you need to isolate your intercom jacks. get both the S1029 and S1028 as a set.

Linn W Verified Purchase

SWITCHCRAFT INSULATED FLAT WASHER S1028
June 11, 2021

This is what you need to isolate your intercom jacks. get both the S1029 and S1028 as a set.

Linn W Verified Purchase

SWITCHCRAFT INSULATED SHOULDER WASHER S1029
June 11, 2021

Q&A

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: I am looking for both shouldered and flat washers (non-conductive) for use with standard 1/4 panel mount stereo headphone jack. Will these washers work?

Yes, you will use the shoulder washer (04-00976) behind the panel with the ridge facing towards the front of the panel. The flat washer (04-00975) goes in the front of the panel. No part of the jack should touch the panel.

Q: Are the insulated washers used on both the mic jack and the headphone jack, or the mic only?

Both the mic and headphone jacks should have insulating washers on both sides of the panel.

Q: What size hole do these jack washers fit?

The dims are 1/32" x 5/8" OD x 3/8" ID.

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