[VHFcontesting] Source for button insulators and retainer washers.

Scott Armstrong aa5am.scott at gmail.com
Wed May 10 11:48:22 EDT 2023


The insulators on the CC 424B  are Heyco SB 312-3 and Mouser stocks them.

https://www.mouser.com/ProductDetail/Heyco/2010?qs=AdThzhLHS%2FNOkTWu6yIWoA%3D%3D

- Scott AA5AM

On Wed, May 10, 2023 at 7:17 AM David Olean <k1whs at metrocast.net> wrote:

> Cushcraft used the Heyco delrin insulators.
>
> Dave K1WHS
>
> On 5/9/2023 9:08 PM, k3sk at buckwalter.co wrote:
> > They are available on Amazon in packages up to 250 pieces.
> >
> > Insulators are made by Heyco
> >
> > 1/4"” ID are SB-375-4
> > 3/16” ID are either SB 312-3 or SB 375-3   Very slight difference in OD
> > 3/8”  ID are SB-500-6
> > 1/2 ” ID are SB-625-8
> >
> > The push nuts (metal fastener) are harder to find and can be expensive.
>  Amazon has them also
> https://www.amazon.com/Value-Brand-4HFW2-Retention-PK200/dp/B07YP887WH/ref=sr_1_1?crid=3ODS6Y8DX2URK&keywords=push+nut+STL%2C+3%2F16+in&qid=1683574816&sprefix=push+nut+stl%2C+3%2F16+in%2Caps%2C196&sr=8-1
> >
> >
> > de K3SK
> >
> > -----Original Message-----
> > From: mikflathead at aol.com <mikflathead at aol.com>
> > Sent: Tuesday, May 9, 2023 5:04 PM
> > To: geoiii at kkn.net; aa5am.scott at gmail.com
> > Cc: vhfcontesting at contesting.com
> > Subject: Re: [VHFcontesting] Source for button insulators and retainer
> washers.
> >
> > Directive Systems has 50 insulators for $20.00 and 50 stainless keepers
> for $30.00. Be careful that you get stainless if ordering from a nut and
> bolt supplier.   Mike
> >
> >
> > -----Original Message-----
> > From: George Fremin III <geoiii at kkn.net>
> > To: Scott Armstrong <aa5am.scott at gmail.com>
> > Cc: vhfcontesting at contesting.com
> > Sent: Tue, May 9, 2023 3:16 pm
> > Subject: Re: [VHFcontesting] Source for button insulators and retainer
> washers.
> >
> > I looked for these for someone recently - but I did not try to order any.
> >
> > M2 and Directive Systems would be the places I would try.
> >
> > And you can also likely find them and places like McMaster Carr - I know
> they sell the retaining hardware because I looked for someone Recently.
> >
> >
> >
> >> On May 8, 2023, at 6:48 AM, Scott Armstrong <aa5am.scott at gmail.com>
> wrote:
> >>
> >> Hi Guys,
> >>
> >> Does anyone have a recommendation  for a source for the 3/16 button
> >> insulators and retaining washers  for  the older Cushcraft antennas.
> >>
> >> Texas Towers no longer carries them.
> >> M2 has them but seems awfully expensive. I'm not sure the antennas are
> >> worth what a couple of bags of insulators and retains would cost+
> shipping.
> >>
> >> Thanks and 73,
> >> Scott AA5AM
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