Military fasteners is my fittings supplier. I do buy other products from them, but I mainly use them for fittings right now. They always send cool gifts with the orders to, which is actually different in this industry,
I found aerobase group a few years ago, and have used them since. I provide them a list of parts that I need at my shop, and they go and source them for me. I can tell they add 10-12 percent margin onto the prices, but it is very worth it for me. I send them one list, I create one order, I pay one vendor, and I get one shipment. I feel like I save money in the long run.
Tip for consumers: go to their site, find the parts you need, and submit the form. a sales person will repond in a few hours with the details of the purchase.
Products used: I purchase various parts from them, but the last project required switches.