Reference select panel supports setting of speed and altitude referencebugs on the pfd, altitude preselect and air-speed/altitude units of measure
NSN 5855-01-397-2487
NSN 5945-01-573-6488
NSN 6110-01-307-1390
NSN 6620-00-137-0332
NSN 5998-01-444-2391
NSN 6240-00-163-5143
NSN 5950-01-093-3893
NSN 6610-01-496-1806
NSN 5965-00-933-8971
NSN 5930-01-148-7068
NSN 6105-00-541-8472
NSN 6610-01-490-2020