Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 56 0012 9H found under Warfarin Sodium Tab by Bristol Myers Squibb Company. The National Stock Number assigned to this part is 6505002545305, 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 56 0012 9H.