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Viton o-ring caliper piston for Cleveland brakes 30-9

FireMedic_2009

Well Known Member
I believe the Milspec part number is MS28775-218 for the brake caliper piston. I tried to cross reference it online but had no luck. A/C Spruce was unable to cross reference it
Thanks
Daren
 
Correct

What I use on my 1992 Cleveland brake caliper piston
 

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What I’m wanting is to replace the MS part number with the Viton equivalent because it’s rated for higher temp. Does anyone know what the Viton part number is?
Thanks
 
What I’m wanting is to replace the MS part number with the Viton equivalent because it’s rated for higher temp. Does anyone know what the Viton part number is?
Thanks

Provided by Randy Lervold:
"Standard MS replacement for the caliper o-rings is MS28775-218. The Viton o-ring upgrade is 2-218V-75 and are available in either black or brown. They are available from: Ace Seal Inc in Santa Clara, CA"
 
I believe the Milspec part number is MS28775-218 for the brake caliper piston. I tried to cross reference it online but had no luck. A/C Spruce was unable to cross reference it
Thanks
Daren

218 is the size. Viton, in two different durometer/temp specs, available in expensively from oringsandmore.

I believe these are the ones I have in my RV-6 with Cleveland brakes:

https://www.oringsandmore.com/viton-heat-resistant-black-o-rings-size-218-minimum-2-pcs/

I have no relationship other than as a happy customer ...

Peter
 
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