6630-00-495-8013 (407A)
NSN 6630-00-495-8013 (NIIN 00-495-8013) is a ph meter in Federal Supply Class 6630, Chemical Analysis Instruments — an electrical instrument embodying a potentiometer circuit with suitable electrodes to determine the effective acidity or alkalinity of a solution. Manufacturer part number 407A (Thermo Orion Inc, CAGE 30260); also referenced as 407 (Thermo Orion Inc).
Key specs: portable; full characteristics table below. NIIN assigned February 1971; DEMIL A (none required); unit of issue EA (each); export Schedule B 9027.50.5000.