Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30683A found under Tubing Nonmetallic by Evoqua Water Technologies Llc. The National Stock Number assigned to this part is 4720005295015, 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 30683A.