Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HCS1008-077 found under Thumbscrew by Heatcon Composite Systems Inc. The National Stock Number assigned to this part is 5305016643478, 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 HCS1008-077.