E.S.D. Critical unit
An item designed for electronic and/or mechanical encryption or information of single signals in order to ensure permanent and secure protection against decryption, and/or designed for decryption of information or single signals.
Classification: Other instruments and apparatus, specially designed for telecommunications (for examle, cross-talk meters, gain measuring instruments etc)
NSN 2925-01-303-5266
NSN 5950-01-539-9576
NSN 5960-01-495-0859
NSN 6150-01-420-6494
NSN 6220-00-770-4533
NSN 6650-01-458-6608
NSN 5975-01-319-6259
NSN 5965-01-566-2744
NSN 5975-00-193-1696
NSN 5910-00-376-9768
NSN 5990-01-198-6336
NSN 5935-01-423-0051