Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10-75-503 found under Switch Lever by Supacat Pty Ltd. The National Stock Number assigned to this part is 5930014443423, 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 10-75-503.