Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54P-12FBUSS found under Adapter Straight Pipe To Tube by Rix Industries. The National Stock Number assigned to this part is 4730012045234, 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 54P-12FBUSS.