Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2881-1109 found under Power Supply Subassembly by Cubic Communications Inc. The National Stock Number assigned to this part is 6130013231880, 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 2881-1109.