Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 120 225 C4R18 found under Screw Close Toleran by Lfc Industries Inc. The National Stock Number assigned to this part is 5305015847121, 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 120 225 C4R18.