I was going back to some of Day's past videos and I came across the video where he recommends a free version to NSN Now for those who may not able to afford the $199/mo price tag for NSN (BTW, they no longer negotiate the price) . It gives you a lot of good info.. One in particular is alternative suppliers/approved vendors and the part numbers for a product. I've attached the video as well. https://www.youtube.com/watch?v=JDDc337Q3eA