Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 169 1210 61 found under Plug Rotary Valve by Kato Engineering Inc. The National Stock Number assigned to this part is 4820016644246, 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 169 1210 61.