Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AB905F34 found under Screw Assembled Washer by Abscoa Industries Inc. The National Stock Number assigned to this part is 5305006331896, 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 AB905F34.