Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS4735 225 10 found under Hose Nonmetallic by Boeing Company The. The National Stock Number assigned to this part is 4720011767095, 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 HS4735 225 10.