Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D801 1216 100 found under Parts Kit Diaphragm by Gas Equipment Engineering. The National Stock Number assigned to this part is 4820011355595, 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 D801 1216 100.