Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A4309-66002 found under Circuit Card Assemb by Hewlett Packard Co. The National Stock Number assigned to this part is 5998014700296, and the Federal Supply Class is 5998 Electrical And Electronic Assemblies Boards Cards And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A4309-66002.