It's a sure bet that most investors, even those who regularly devour financial media, were until recently not familiar with Heico (HEI 0.60%). The specialty industrial components maker is a decades-old enterprise that operates an unglamorous business and rarely generates attention-grabbing news.Yet it's been quite the outperformer at times, and if anyone likes a solid yet under-the-radar stock, it's Warren Buffett. Heico's relative obscurity ended forever when the master investors at Berkshire Hathaway firs ...