A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-172-4604
NSN 2925-01-016-0876
NSN 5965-01-365-7470
NSN 6610-01-228-8883
NSN 6150-01-430-5558
NSN 5990-01-548-5979
NSN 5915-01-562-9896
NSN 6145-01-267-3115
NSN 5910-00-946-0550
NSN 2925-01-197-7864
NSN 6135-01-579-3534
NSN 6610-00-168-2200