Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10309019 found under Screw Machine by Eberspaecher Climate Controlsystems. The National Stock Number assigned to this part is 5305123728048, 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 10309019.