Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC00641-2555-45 found under Phenytoin Sodium In by West Ward Pharmaceutical Corp. The National Stock Number assigned to this part is 6505013329024, 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 NDC00641-2555-45.