Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PD1-D348-A2-R01 found under Adapter And Flange Assembly by Sts Operating Inc. The National Stock Number assigned to this part is 4730016211269, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PD1-D348-A2-R01.