Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0621-1024-10A found under Screw Cap Hexagon Head by B And B Specialties Inc. The National Stock Number assigned to this part is 5305014223022, 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 0621-1024-10A.