Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6B019 found under Test Kit Antiepileptic Drug Determination by Siemens Healthcare Diagnostics Inc. The National Stock Number assigned to this part is 6550010975999, 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 6B019.