Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CLH311-115 found under Heater Thermal Rele by Vaisala Meteorological Systems Inc. The National Stock Number assigned to this part is 5999015640922, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CLH311-115.