Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 41D400-160PC1 found under Retainer Closure H by Ac Valve Inc. The National Stock Number assigned to this part is 4470004549085, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 41D400-160PC1.