Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R143754-01 found under Support System Tactical by Raytheon Company. The National Stock Number assigned to this part is 7022015562440, and the Federal Supply Class is 7022 Adp Central Processing Unit Cpu Computer Hybrid. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R143754-01.