Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5337PC found under Restrictor Fluid Flow by Romac Industries Ltd. The National Stock Number assigned to this part is 4730007597401, 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 5337PC.