Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1R2280MSL28V found under Switch Code Indicat by Transico Inc. The National Stock Number assigned to this part is 5930011464190, 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 1R2280MSL28V.