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03-01-2021, 06:11 PM
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Join Date: Oct 2018
Location: CYQA Canada
Posts: 55
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Rivet question...
Van’s includes some MK-319-BS rivets in the RV8 empennage kit. These require a #33 hole. I wanted a few extra, so ordered CCC-32 rivets from ACS which, according to their website, are equivalent to the MK-319-BS rivets. Not so fast, Grasshopper! I received the ACS rivets today and they are clearly different. They fit into a #40 hole.
So the question is... What am I missing here?
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RV-3A (C-FARV) bought
RV-8 (C-FRAP) building
Donated 2021
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03-01-2021, 07:11 PM
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Join Date: Aug 2019
Location: Western Australia
Posts: 558
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MK-319-BS rivet diameter is 7/64 so ACS website may have a typo in the cross-reference.
Vans do sell the MK-319-BS rivets individually.
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Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
Flying my Aeroprakt A-22 STOL and the aero club's RV-9A while I build
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03-01-2021, 07:57 PM
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Join Date: Sep 2018
Location: sykesville, Md
Posts: 13
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Rivet question
I LOVED the (Not so fast, Grasshopper) but your age is showing. LMAO
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03-01-2021, 08:35 PM
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Join Date: Aug 2010
Location: Newport News, Va
Posts: 361
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MK 319 BS is POP brand
This doesn't help find them but looks like they are POP brand.
.
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John Bright, RV-6A, N1921R reserved, at FWF
O-360, 8.5:1, vert sump, dual SDS EFI EM-5-F
Z101 as a template, links
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03-02-2021, 08:47 AM
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Join Date: Dec 2017
Location: Southern Maryland
Posts: 151
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I looked into buying the ACS version of the MK-319BS as well but ultimately chose to stick with Van's to make sure I was getting the same rivet despite their higher price.
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RV-7:
Empennage complete
Wings/Fuselage in progress
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03-02-2021, 09:55 AM
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Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,237
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The ACS rivet is different than the vans rivet.
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Ser 140142, RV-14A flying - N1463 
Ser 83825, RV-8 building - N8638? 
USN Ret, Urologist, AME, Repeat Offender
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03-02-2021, 10:20 PM
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Join Date: Aug 2014
Location: Edmonton, AB
Posts: 229
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Both the MK-319-BS and the CCC-32 are stainless rivets with a stainless pin and classed as a 3/32" rivet diameter...(I chuckle at this one) Yes, the MK-319-BS is just a touch larger in a pilot hole... needing #33 (or a #34 works as well). Both have a rivet grip of 0.020 to 0.125. But the CCC-32 has a slightly less shear strength of 230 compared to the MK-319-BS at 258. (Side note an AD3 - 2117-T4 aluminum rivet has a shear of 217. An AD4 has a shear of 389)
Disclaimer - Don't quote me on these numbers, its just what I have written down in my notebook, and I could be way off so its wise for you to do your own research.
Last edited by Aero_Octaveus : 03-02-2021 at 10:58 PM.
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03-03-2021, 12:34 AM
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Join Date: Aug 2019
Location: Western Australia
Posts: 558
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Quote:
Originally Posted by Aero_Octaveus
Both the MK-319-BS and the CCC-32 are stainless rivets with a stainless pin and classed as a 3/32" rivet diameter...(I chuckle at this one) Yes, the MK-319-BS is just a touch larger in a pilot hole... needing #33 (or a #34 works as well). Both have a rivet grip of 0.020 to 0.125. But the CCC-32 has a slightly less shear strength of 230 compared to the MK-319-BS at 258. (Side note an AD3 - 2117-T4 aluminum rivet has a shear of 217. An AD4 has a shear of 389)
Disclaimer - Don't quote me on these numbers, its just what I have written down in my notebook, and I could be way off so its wise for you to do your own research.
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Yup that notebook sure needs a checking and a revising because MK-319-BS ain't stainless, they be monel and carbon steel... and diameter is 7/64 not 3/32...
__________________
Paul vS (yes I'm also a Van)
Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
Flying my Aeroprakt A-22 STOL and the aero club's RV-9A while I build
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03-03-2021, 04:16 AM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,127
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We use CCC-32 as a replacement for those nasty little skin rivets when there is a danger of not being able to buck. Just bear in mind that both these rivets are 120° and not 100° countersunk.
Never mind Grasshopper - Skyservice seems so long ago Rich 
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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03-08-2021, 07:53 PM
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Join Date: Oct 2018
Location: CYQA Canada
Posts: 55
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Quote:
Originally Posted by mike newall
Never mind Grasshopper - Skyservice seems so long ago Rich |
Nearly 16 years since I last flew for Skyservice. And now been retired almost a year. Time flies. 😄
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RV-3A (C-FARV) bought
RV-8 (C-FRAP) building
Donated 2021
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