Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 677038-1 found under Screw Close Toleran by Heligear Acquisition Co. The National Stock Number assigned to this part is 5305001277567, 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 677038-1.