Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6020 found under Hose Preformed by Porter H K Co Inc. The National Stock Number assigned to this part is 4720005661258, 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 6020.