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  #1  
Old 01-31-2019, 07:49 AM
wnplt wnplt is offline
 
Join Date: Feb 2013
Location: Idaho
Posts: 186
Default Fuel tank screws?

Can anybody tell me how many fuel tank screws there are on a RV7? My plane is at the paint shop and I want to replace them all. I need to get them ordered but don’t have access to the plane at this time.

Also looking for part number of the tank screw too...

Thanks...

Last edited by wnplt : 01-31-2019 at 07:57 AM.
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  #2  
Old 01-31-2019, 08:36 AM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
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Quote:
Originally Posted by wnplt View Post
Can anybody tell me how many fuel tank screws there are on a RV7? My plane is at the paint shop and I want to replace them all. I need to get them ordered but don?t have access to the plane at this time.

Also looking for part number of the tank screw too...

Thanks...
AN509-8R8 x 120
Might want a few extra.
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Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
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I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #3  
Old 01-31-2019, 09:03 AM
wnplt wnplt is offline
 
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Location: Idaho
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Thanks for the quick reply👍
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  #4  
Old 01-31-2019, 12:19 PM
dmat dmat is offline
 
Join Date: Oct 2010
Location: Union County, NJ
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Would you happen to know the NAS number on that?

D
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  #5  
Old 01-31-2019, 12:22 PM
moosepileit moosepileit is offline
 
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Location: Floyds Knobs, IN
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MS24694S5

https://catalog.monroeaerospace.com/...ews/an509-8r8N Screws
AN509-8R8
MS24694/AN509 100 Degree Flat Head Structural Machine Screws
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1

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RFQ
Description
Specifications
Applications
Sold In Per Package
Inventory Note Need additional stock? Call (877) 920-1876 or email
Thread Size 8-32
Material Carbon Steel
Length 17/32 in
Grip 3/32 in
Head Type Flat
Head Angle 100 ?
Industry Standards/Certification AN509
Weight 0.005 lb
Alternate Part Number MS24694S5
Minimum Order Note You must purchase in increments of 1 at a time.
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  #6  
Old 01-31-2019, 12:27 PM
dmat dmat is offline
 
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Location: Union County, NJ
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I cant speak as a builder but I am replacing my fuel tanks after resealing and the screws that I took out were huge (at least 1/2 inch grip). I don't have access to my 6 plans but 3/32 grip length sounds small. Again, I'm not a builder, just someone who saw what came off my current tanks.

I was planning on replacing mine with MS24694-S11 with a grip length of 15/32's.

Thoughts?
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WTB RV4/8?- Looking for a 4 or 8 that needs some love and TLC. PM me if you have one!

Donations Paid- Thank you VAF!
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  #7  
Old 01-31-2019, 01:20 PM
moosepileit moosepileit is offline
 
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Location: Floyds Knobs, IN
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I just used a website to convert Wirejock's AN- based post to MS. Good catch if spec'd grip does not match the plans, guess we need a hand, my plans are in the hangar distant.
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  #8  
Old 01-31-2019, 01:30 PM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Quote:
Originally Posted by dmat View Post
I cant speak as a builder but I am replacing my fuel tanks after resealing and the screws that I took out were huge (at least 1/2 inch grip). I don't have access to my 6 plans but 3/32 grip length sounds small. Again, I'm not a builder, just someone who saw what came off my current tanks.
I was planning on replacing mine with MS24694-S11 with a grip length of 15/32's.
Thoughts?
Grip length refers to the thickness of the material to be clamped. A grip length of 15/32" would require the material to be clamped to be 1/2" thick.
MS24694-S11 are almost 1" long.
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  #9  
Old 01-31-2019, 01:40 PM
dmat dmat is offline
 
Join Date: Oct 2010
Location: Union County, NJ
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I guess when I say "grip length" I mean the length of the bolts thread. So what I have is 15/32 length with a full thread from tip to head. (MS24694-S11)

is that acceptable for a tank install?

D
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RV6A: N6389-->N456RJ - Avionics Upgrade & Restoration COMPLETE & Flying

WTB RV4/8?- Looking for a 4 or 8 that needs some love and TLC. PM me if you have one!

Donations Paid- Thank you VAF!
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  #10  
Old 01-31-2019, 02:07 PM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
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Quote:
Originally Posted by dmat View Post
I guess when I say "grip length" I mean the length of the bolts thread. So what I have is 15/32 length with a full thread from tip to head. (MS24694-S11) is that acceptable for a tank install?
D
The specs I'm seeing for the MS24694-S11 show overall length of 0.9", a thread length of 0.4", leaving a grip length of around 0.5".
If your screws have full thread from tip to head, they should work. But that's not what I see from the specs.
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EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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