Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30-013-28 found under Clamp Hose by Bowhead Manufacturing Company Llc. The National Stock Number assigned to this part is 4730015606418, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 30-013-28.