Major subsystem of ntc-is (nsn: 6940016130815); includes the equipment in the building, not the building itself.
No other part numbers with same form, fit, and function found.
NSN 5975-01-523-6016
NSN 6645-01-127-1793
NSN 6145-01-556-7403
NSN 5910-00-401-7891
NSN 6685-00-261-4860
NSN 6135-00-162-2437
NSN 6220-00-004-6394
NSN 5920-01-352-6650
NSN 7035-00-553-6951
NSN 6620-01-160-3475
NSN 5998-01-314-3562
NSN 5910-01-148-9191