Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y723B-0.750-004 C found under Gasket by Jn And N Inc. The National Stock Number assigned to this part is 5330014455703, 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 Y723B-0.750-004 C.