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exFSAE
10-09-2008, 01:07 PM
Anyone have documents on shaft / thread tolerances on these fasteners? A quick Google-ing didn't come up with much.

We always used AN hardware and the fasteners always seemed 2-4 thou undersized. Even while reaming spacers etc .001 under there would always be some slop there (not to mention in rod-end and spherical bearings).

Anyone familiar with NAS or military spec fasteners? Do they have closer tolerance on the grip diameter?
Alan
10-09-2008, 01:12 PM
This link may have the info you're looking for.

http://coastfab.com/tech%20info.html
exFSAE
10-09-2008, 02:04 PM
Perfect, Alan. Thanks.

Looks like the NAS do have much better grip diameter tolerance...
Drew Price
10-09-2008, 02:24 PM
Is it possible you had the surplus undersize AN hardware?

Best,
Drew
Rellis
10-09-2008, 07:35 PM
http://www.gen-aircraft-hardware.com/
Price
10-10-2008, 12:29 AM
If you know the number for any MIL, AN, NAS, NA spec that you are trying to find information for, then this site might help you out.

http://assist.daps.dla.mil/quicksearch/

There is a lot of information available there, it is just a little hard to find sometimes.