Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VB8-51-BR-T-S-E found under Valve Vacuum Breaking by Kadant Johnson Inc. The National Stock Number assigned to this part is 4820011169340, 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 VB8-51-BR-T-S-E.