Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CSF 16S found under Screw Machine by Gyrus Acmi Corp. The National Stock Number assigned to this part is 5305012209696, 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 CSF 16S.