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acceptable defects on universal head rivets??

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ceengland(at)bellsouth.ne
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Posted: Tue Oct 10, 2006 12:00 pm Post subject: acceptable defects on universal head rivets??

Just saw this on another list:



Per MIL-STD-403C (the revision level of the paper copy [he has]) para

5.2.7.5:

 "Marring of the manufactured head.  A cut or ring caused by the riveting

equipment shall be acceptable on non-flush rivets providing the depth of

the cut is not greater than one-fourth of the head height.  Cut or ringed

flush rivets shall not be acceptable."



Anybody who's familiar with either mil-spec standards or FAA 'best practices' that knows whether this is valid? I'm not advocating sloppy work, but I can remember drilling out a few 1/8" rivets due to minor errors with the universal set & making a bigger problem when I did it. If the quote above is accurate, I'd bet there are quite a few projects out there that would be better off carrying around a few 'smiles'.



Charlie

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