Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11 3X2 4HN18830C found under O Ring by Komatsu Deutschland Gmbh. The National Stock Number assigned to this part is 5331121441585, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 11 3X2 4HN18830C.