Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS2623 4Z13X found under Screw Shoulder by Huck International Inc. The National Stock Number assigned to this part is 5305002934997, 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 HS2623 4Z13X.