Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P18284 found under Setscrew by Koehring Cranes And Excavators Inc. The National Stock Number assigned to this part is 5305002157324, 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 P18284.