Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIS-28528 1-054 found under Push Button by Numberinc. The National Stock Number assigned to this part is 5930012107748, 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 MIS-28528 1-054.