Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ES1A-0392 ITEM NO.9 found under Flange Gland Valve by Bray Valve And Controls Usa. The National Stock Number assigned to this part is 4820014910787, 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 ES1A-0392 ITEM NO.9.