Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST3M577-3-9 found under Screw Close Tolerance by Camcar Llc. The National Stock Number assigned to this part is 5305015136935, 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 ST3M577-3-9.