Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5SP4YA11 found under Pin Straight Headed by Martin Baker Aircraft Co Ltd. The National Stock Number assigned to this part is 5315008785920, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5SP4YA11.