Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A241721-5 found under Screw Cap Hexagon H by Micro Tech Intl Inc. The National Stock Number assigned to this part is 5305016339919, 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 A241721-5.