Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GN72073-1 found under Weapons System Trainer Subassemb by L3 Communications Corp. The National Stock Number assigned to this part is 6930006102920, 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 GN72073-1.