Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H20-0011-621 found under Screw Machine by Harris Solutions Ny Inc. The National Stock Number assigned to this part is 5305016072245, 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 H20-0011-621.