Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HT04R40F05P found under Screw Cap Socket He by Align Aerospace Llc. The National Stock Number assigned to this part is 5305011166615, 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 HT04R40F05P.