Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B16 103-03 found under Screw Cap Hexagon H by Carleton Technologies Inc. The National Stock Number assigned to this part is 5305016333016, 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 B16 103-03.