Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 221588-6 found under Switch Subassembly by Bowmar Llc. The National Stock Number assigned to this part is 5930007615776, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 221588-6.