Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 30040D019A4SF found under Thermometer Self Indicating Bime by Wika Holding Lp. The National Stock Number assigned to this part is 6685000530493, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 30040D019A4SF.