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Finder O-Rings

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#1 RAK on Tour

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Posted 14 November 2012 - 02:00 PM

Does anyone know where to get replacement O-rings for the common 6x30 finderscopes? I need to replace a broken one, and the auto parts store's O-rings are too thick.

Also, does anyone sell replacement holders that have the spring button and two adjustment screws at 90 degrees apart? Th current holder I have is the old style with three screws placed every 120 degrees.

Thanks!

#2 rdandrea

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Posted 14 November 2012 - 03:01 PM

Try the plumbing department at a well-stocked hardware store.

#3 coopman

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Posted 14 November 2012 - 09:38 PM

Try Agena Astro.

#4 RAK on Tour

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Posted 14 November 2012 - 09:44 PM

Thanks, guys. I'm going to try Ace, Lowe's, and a local plumbing store. If I come up empty, I'll try Agena Astro. I've used them before and have been well satisfied.

#5 kfiscus

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Posted 14 November 2012 - 11:50 PM

My ACE Hardware had the correct one. Take your scope and mount with you!

#6 Midnight Dan

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Posted 15 November 2012 - 07:12 AM

For all things hardware, McMaster Carr:

http://www.mcmaster....o-rings/=k68vhp

-Dan

#7 scott m

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Posted 15 November 2012 - 08:49 AM

Scope Stuff also has them http://www.scopestuff.com/ss_fring.htm

#8 RAK on Tour

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Posted 16 November 2012 - 01:44 PM

I found an O-ring that works! At Ace, in the metric O-ring drawers, I found the part # ORM-204-026 at a cost of $1.39. It's a 26mm inside diameter O-ring, 2mm thick. I tried it there in the store on my 6x30 finder and it works perfectly, including fitting into the finder bracket. I tried a slightly larger inside diameter O-ring, but there wasn't enough tension to keep the O-ring in place when I tried to slip the finder bracket over the O-ring. If you have a broken or missing O-ring on your 6x30 Synta finder, this works great!

#9 hottr6

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Posted 13 December 2012 - 03:40 PM

Good to know the metric version.

I grabbed the SAE version at ACE Hardware for $0.57. It is -026 size, 1/16" width, ID=1.25", OD=1.375".

ScopeStuff and Agena Astro have o-rings for 50mm finders only.






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