Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17158 IT 30 found under Valve Check by Hamworthy Kse Ab. The National Stock Number assigned to this part is 4820014351372, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17158 IT 30.