Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 200666 3 found under Tubing Nonmetallic by Gilian Instrument Corp. The National Stock Number assigned to this part is 4720015114671, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 200666 3.