Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3MS1-21-3212L70C found under by M L Components Ltd. The National Stock Number assigned to this part is 5930014125154, 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 3MS1-21-3212L70C.