Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC53489-0355-05 found under Labetalol Hydrochlo by Mutual Pharmaceutical Company Inc. The National Stock Number assigned to this part is 6505012085995, 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 NDC53489-0355-05.