Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00536-4070-01 found under Niacin Tablets Usp by Watson Pharmaceuticals Inc. The National Stock Number assigned to this part is 6505013078197, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NDC00536-4070-01.