Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 991S03-19-1AF found under Stud Turnlock Fastener by Bae Systems Australia Ltd. The National Stock Number assigned to this part is 5325015500460, 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 991S03-19-1AF.