FLAT-SPECTRUM RADIO-LOUD NARROW LINE SEYFERT 1 GALAXIES (F-RLNLS1S) DEFINE A NEWLY DISCOVERED CLASS OF AGNS THAT APPEARS TO OCCUPY A DISTINCT LOCUS IN THE PARAMETER SPACE OF AGNS. THEY ADD A THIRD DIMENSION TO THE EIGENVECTOR-1 DEFINED BY BLACK HOLE MASS AND ACCRETION RATE WITH INCLUSION OF BH SPIN. IN MODELS OF SCALE-INVARIANT DISK-JET EMISSION RADIO EMISSION DEFINES THE JET POWER WHILE X-RAY EMISSION DEFINES THE ACCRETION DISK EMISSION. THE OBSERVED PROPERTIES OF F-RLNLS1S APPEAR TO DEFY THIS UNIVERSALITY. THE NUSTAR ENERGY RANGE OF 3--79 KEV IS OF PARTICULAR INTEREST AS WE EXPECT IT TO REVEAL THE PHYSICS OF THE ``DISK-JET CONNECTION'' BY PROBING ACCRETION DISK EMISSION AS WELL AS RELATIVISTIC JET EMISSION. WE PROPOSE NUSTAR OBSERVATIONS OF 3 F-RLNLS1S 2 OF WHICH ARE GAMMA-RAY LOUD.