Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAS1219-3E9 found under Screw Machine by M F Services Inc. The National Stock Number assigned to this part is 5305004266081, 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 NAS1219-3E9.