Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 300-629 ITEM 15 found under Diaphragm Valve Flat by Biomarine Ntron Incorporated. The National Stock Number assigned to this part is 4820010413163, 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 300-629 ITEM 15.