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  #1  
Old 03-01-2021, 06:11 PM
Rich Pulman Rich Pulman is offline
 
Join Date: Oct 2018
Location: CYQA Canada
Posts: 60
Default 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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  #2  
Old 03-01-2021, 07:11 PM
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PaulvS PaulvS is offline
 
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Location: Western Australia
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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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  #3  
Old 03-01-2021, 07:57 PM
keith6261 keith6261 is offline
 
Join Date: Sep 2018
Location: sykesville, Md
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Default Rivet question

I LOVED the (Not so fast, Grasshopper) but your age is showing. LMAO
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  #4  
Old 03-01-2021, 08:35 PM
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johnbright johnbright is offline
 
Join Date: Aug 2010
Location: Newport News, Va
Posts: 364
Default MK 319 BS is POP brand

This doesn't help find them but looks like they are POP brand.
.
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  #5  
Old 03-02-2021, 08:47 AM
Girraf Girraf is offline
 
Join Date: Dec 2017
Location: Southern Maryland
Posts: 162
Default

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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  #6  
Old 03-02-2021, 09:55 AM
JDA_BTR JDA_BTR is offline
 
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Location: Baton Rouge, LA
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The ACS rivet is different than the vans rivet.
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  #7  
Old 03-02-2021, 10:20 PM
Aero_Octaveus Aero_Octaveus is offline
 
Join Date: Aug 2014
Location: Edmonton, AB
Posts: 231
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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.
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Last edited by Aero_Octaveus : 03-02-2021 at 10:58 PM.
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  #8  
Old 03-03-2021, 12:34 AM
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PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
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Quote:
Originally Posted by Aero_Octaveus View Post
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.
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...
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  #9  
Old 03-03-2021, 04:16 AM
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mike newall mike newall is offline
 
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Location: Yorkshire, England
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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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  #10  
Old 03-08-2021, 07:53 PM
Rich Pulman Rich Pulman is offline
 
Join Date: Oct 2018
Location: CYQA Canada
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Quote:
Originally Posted by mike newall View Post
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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