Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HT04S40S10 found under Screw Machine by Align Aerospace Llc. The National Stock Number assigned to this part is 5305007255377, 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 HT04S40S10.