Where the @#$% do you source oddball NAS/MS/AN stuff?

["Tim Osborne" <timos@microsoft.com>]

The places I've contacted have the goods but don't like to deal with
small time, non-aerospace customers.  Any hints?  I need high strength
countersunk bolts that Aircraft Spruce and Pegasus don't carry (or want
to know about).  NAS1155-18, if that helps.

I'd rather not put grade 8 stuff in since it's a) a brake rotor shear
application, and b) the holes are dimensioned for NAS 100 degree
countersunk heads.

tim