Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4303-04200VF found under Thermometer Self Indicating Bime by Si International Inc. The National Stock Number assigned to this part is 6685015235938, 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 4303-04200VF.