To complete the analysis of the complex infrared spectra of 1 4 NH 3 in the 4- to 8-μm region, we assigned nearly 1200 transitions in the 3ν 2 -ν 2 , ν 2 +ν 4 -ν 2 , ν 1 -ν 2 , ν 3 -ν 2 , 2ν 4 -ν 2 and 4ν 2 -ν 2 hot bands using the upper state energy levels determined by our previous studies at 4 and 3 μm (J. Mol. Spectrosc.173, 120-145 (1995); 193, 46-71 (1999)). Line intensities of those hot bands were analyzed using measurements retrieved from 0.0056 and 0.011 cm - 1 unapodized resolution FT spectra recorded at Kitt Peak National Observatory. By a least-squares fit of vibrational-inversion transition moments, over 770 intensity measurements are modeled to +/-7.2% and +/-8.9% in the 5- to 8-μm and 4-μm regions, respectively. The values of the transition dipole moment were determined to obtain the band strengths of hot bands. In the 5- to 8-μm region, the band strengths in cm - 2 atm - 1 at 296 K of 3ν 2 -ν 2 (a<-s), 3ν 2 -ν 2 (s<-a), ν 2 +ν 4 -ν 2 (s<-s) and ν 2 +ν 4 -ν 2 (a<-a) were found to be 0.000075(23), 0.351(22), 0.689(32), and 0.525(44), respectively. In the 4-μm region, for the ν 3 -ν 2 (s<-s), ν 3 -ν 2 (a<-a), 2ν 4 l 4 = + /- 2 -ν 2 (s<-s), and ν 4 l 4 = + /- 2 -ν 2 (a<-a), they were estimated to be 0.0703(32), 0.0599(27), 0.00547(34), and 0.00473(29), respectively at 296 K. Also, about 100 line intensities of the ν 1 -ν 2 (a<-s), ν 1 -ν 2 (s<-a), 2ν 4 l 4 = 0 -ν 2 (a<-s), 2ν 4 l 4 = 0 -ν 2 (s<-a), and 4ν 2 -ν 2 (s<-a) weak hot bands were measured and reported. The prediction generated by the present study is available for the detection of 1 4 NH 3 in exoplanet atmospheres and brown dwarf stars with relatively high temperature (~1000 K). A few self-broadened linewidths are reported to demonstrate that there is a large variation with the vibrational quanta.