Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 14G-4000 found under Disk Rupturable by Rego Co. The National Stock Number assigned to this part is 4820010635971, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 14G-4000.