Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PC91049-5 found under Screw Externally Relieved Body by Align Aerospace Llc. The National Stock Number assigned to this part is 5305012672874, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PC91049-5.