Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HT4UA4-14 found under Screw Machine by Hi Shear Corporation. The National Stock Number assigned to this part is 5305007643018, 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 HT4UA4-14.