Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 89 1012191 1 found under Amplifier Subassembly by General Dynamics C4 Systems Inc. The National Stock Number assigned to this part is 5996009067299, 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 89 1012191 1.