Up for grabs is my brass Warwick Just-A-Nut for a 5-string.
Width is 45mm.
Bought it new and installed it for a few minutes until I realized the nut doesn't sit properly at the headstock (angled headstock places the nut at an angle away from the fingerboard. doh!)
Shipping is free for USPS First Class in the Continental U.S.
Feel free to ask any questions.
Thanks for looking!