Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10001B0405-001 found under Switch Rotary by Northern Telecom Systems Corp. The National Stock Number assigned to this part is 5930008508181, 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 10001B0405-001.