Dude, why are you being so aggressive? I came here for some conversation about bass, you came here for a fight. Nash being a parts builder is well documented and not some kind of industry secret. Hell, have you reached out to Nash to see what they have to say? I highly doubt they deny being a parts builder (or claim to manufacture their own parts) because it isn't a negative. You clearly are not interested in facts, logic, or research so why bother debating my claim?
That is a fair point and very possible. However, considering his past using off-the-shelf parts I find it unlikely. I am also pretty sure he uses All Parts and Warmoth because then he can legally sell basses with the Fender headstock shape - they have been officially and legally licensed. A builder cannot start a line with those headstocks without facing considerable legal action. I think you need to buy a LOT of necks to get them to re-tool the machines and get custom pieces.
For the record, I never said Nash basses are bad. I am sure they play awesome. I almost bought myself one a few years ago. Hell, a good fit and finish is what sets instruments apart.