A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5915-00-140-9230
NSN 5835-00-759-1109
NSN 5999-00-114-1486
NSN 7035-01-239-7297
NSN 6135-00-906-0984
NSN 6620-01-658-1849
NSN 5999-00-006-3694
NSN 6145-00-286-9588
NSN 4140-01-294-0007
NSN 6645-00-900-5830
NSN 2925-01-197-7864
NSN 5996-01-012-3267