Also true story, there were 1/2" steel bolts with associated bolts and washers catalogued with an NSN and treated as ITAR because they were used on some kind of cabinet to secure it to shock mounts.
You can buy them by the pound at any home improvement/fastener type store, but as soon as they got an NSN they suddenly became controlled goods and handled by someone with secret clearance.
Nothing fancy, just normal grade 8 bolts. Took something like 3 years to have the request to the TA back through the channels to remove the code from it, and I think we re-catalogued the exact same part under our own number instead just so someone could buy them locally. So dumb.