A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6320-01-056-1164
NSN 5975-01-148-7259
NSN 5985-00-010-0645
NSN 6135-00-170-8819
NSN 6220-01-644-9544
NSN 4140-01-029-8252
NSN 5835-00-834-1286
NSN 5905-00-301-3689
NSN 6135-00-255-1340
NSN 6320-00-405-2348
NSN 5855-01-159-1654
NSN 7035-01-482-6048