Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TH101 12 found under Valve Control by Assembly And Test Worldwide Inc. The National Stock Number assigned to this part is 4820012382779, 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 TH101 12.