Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3MA509-10R14 found under Screw Machine by Herndon Products Inc. The National Stock Number assigned to this part is 5305004379431, 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 3MA509-10R14.