Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1888-5.754 23911 found under Retainer Packing by Precision Associates Inc. The National Stock Number assigned to this part is 5330012126700, 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 1888-5.754 23911.