Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 70219-02554-105 found under Stud Turnlock Fastener by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 5325011177452, 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 70219-02554-105.