Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LM 1 2IN STS 56 found under Ejector Jet by Ecco Limited. The National Stock Number assigned to this part is 4320012850730, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LM 1 2IN STS 56.