Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A30-0371-004 found under Retainer Seal by Harris Corp. The National Stock Number assigned to this part is 5330016187686, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A30-0371-004.