Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 19HCS 104PC33 19FCS 105PC56 found under Retainer Packing by Aurora Pump. The National Stock Number assigned to this part is 5330014083751, 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 19HCS 104PC33 19FCS 105PC56.