Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TAPITS10-12-3-4 found under Screw Tapping by Apollo Aerospace Components Llc. The National Stock Number assigned to this part is 5305007919426, 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 TAPITS10-12-3-4.