The '-3' is sheet three of the drawing; psu is a power supply unit
NSN 5945-00-648-0552
NSN 4140-01-574-0676
NSN 6110-00-227-0578
NSN 6620-00-516-3204
NSN 5920-01-436-8170
NSN 6150-01-441-9621
NSN 2925-00-922-3785
NSN 6105-01-293-7200
NSN 5965-01-565-2262
NSN 7035-00-337-8745
NSN 5996-01-131-2765
NSN 6320-01-426-8947
Last Updated: 02/10/2025