Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 853 12 57 1 2 found under Hose Nonmetallic by Eaton Aeroquip Inc. The National Stock Number assigned to this part is 4720009172736, 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 853 12 57 1 2.