Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N50-043PC9 found under Tube Gage by Princo Instruments Inc. The National Stock Number assigned to this part is 4710003992867, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N50-043PC9.