Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LST1156S44001393861-138 found under Gland Packing by Ac Valve Inc. The National Stock Number assigned to this part is 2010003440738, and the Federal Supply Class is 2010 Ship And Boat Propulsion Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LST1156S44001393861-138.