Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NDC51039-0605-05 found under Protamine Sulfate I by U S Dept Of Veterans Affairs. The National Stock Number assigned to this part is 6505012907654, 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 NDC51039-0605-05.