Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4451303 found under Power Supply Subassembly by Alcatel Lucent Usa Inc. The National Stock Number assigned to this part is 6130005428078, and the Federal Supply Class is 6130 Converters Electrical Non Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4451303.