Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VD00102 found under Cock Poppet Drain by W S Darley And Co. The National Stock Number assigned to this part is 4820012681953, 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 VD00102.