Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6P5159 found under Hose Assembly Nonme by Caterpillar Inc. The National Stock Number assigned to this part is 4720012089237, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6P5159.