A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6150-01-187-1533
NSN 5998-01-345-7430
NSN 2925-01-233-8545
NSN 6135-01-521-0378
NSN 5930-00-218-4739
NSN 5996-00-911-8120
NSN 6650-00-524-6373
NSN 5935-00-122-0033
NSN 5905-01-477-7152
NSN 7035-00-631-3782
NSN 6220-00-181-9698
NSN 5855-01-496-1234