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Ed Anderson
Joined: 10 Jan 2006
Posts: 475
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 Posted: Sat Mar 04, 2006 5:30 am Post subject: O ring screw??Re: Sealing Tank Access Covers |
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This is essentially what I did, only I used O-ring equipped screws (from
McMaster) for the cover fasteners (hence no need for washers and Proseal)
and 8
yrs later have had no leaks.
GV (RV-6A N1GV O-360-A1A, C/S, Flying 774hrs, Silicon Valley, CA)
Do you have a part number or Name of the O ring equipped screws? I tried
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searching in McMaster and couldn't find them.
Thanks
Ed
Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson(at)carolina.rr.com
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Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com |
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ptrotter
Joined: 10 Jan 2006
Posts: 28
Location: Westchester County, NY
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| Posted: Sat Mar 04, 2006 5:57 am Post subject: O ring screw??Re: Sealing Tank Access Covers |
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Ed,
The McMaster part number is 90825A816 for an 8-32x1/2" o-ring screw. Please
note that these have silicon o-rings that must be replaced with viton
o-rings for fuel resistance.
Paul
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Paul Trotter
RV-8 82080 Fuselage Kit
N801PT (reserved) |
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Ed Anderson
Joined: 10 Jan 2006
Posts: 475
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| Posted: Sat Mar 04, 2006 6:10 am Post subject: O ring screw??Re: Sealing Tank Access Covers |
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Ok, thanks, Paul. Understand I must replace the screw's O rings with viton
O rings.
Ed
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Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com |
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Vanremog(at)aol.com
Guest
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| Posted: Sat Mar 04, 2006 8:52 am Post subject: O ring screw??Re: Sealing Tank Access Covers |
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In a message dated 3/4/2006 5:31:25 A.M. Pacific Standard Time,
eanderson(at)carolina.rr.com writes:
Do you have a part number or Name of the O ring equipped screws? I tried
searching in McMaster and couldn't find them.
=======================================
Ed-
Sorry, my memory fails me (I suffer from CRS). I was into it when I was
building and much of it seems a mystery to me years later.
The sealing screws I got were apparently not from McMaster. I likely bought
them from some other source (maybe MS Inserts, Olander or Norcal) as they
were definitely 8-32 X .500" Phillips Pan Head cross-recess in 400 Stainless
and had Viton O-Rings.
The ones I got were Long-Lok brand and they are called Self-Seal Screws.
This is the most reliable way to go IMO, as these fasteners were made for this
application. I conjugated a P/N of SS1832VLP8 from the .pdf of the spec
sheet at
_http://longlok.com/products_selfseal.htm_
(http://longlok.com/products_selfseal.htm)
GV (RV-6A N1GV O-360-A1A, C/S, Flying 774hrs, Silicon Valley, CA)
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Ed Anderson
Joined: 10 Jan 2006
Posts: 475
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| Posted: Sat Mar 04, 2006 2:56 pm Post subject: O ring screw??Re: Sealing Tank Access Covers |
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Ed Anderson
Rv-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com |
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