Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4AT2(6T90S-6T90 found under Hose Assembly Nonme by Atlas Hydraulics Div Starcan Corp. The National Stock Number assigned to this part is 4720219129194, 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 4AT2(6T90S-6T90.