Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9521519 found under Socket Snap Fastener by Meggitt Aircraft Braking Systems. The National Stock Number assigned to this part is 5325002188835, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9521519.