Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11449942-3 found under Screw Shoulder by Abston Machine Shop Inc. The National Stock Number assigned to this part is 5305012806654, 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 11449942-3.