A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5945-01-478-0155
NSN 5925-00-169-4513
NSN 5905-00-946-9830
NSN 5920-00-958-1526
NSN 6620-01-411-0390
NSN 5835-00-433-0170
NSN 6240-01-487-3840
NSN 6130-00-317-3054
NSN 5990-01-291-0600
NSN 6220-01-302-4410
NSN 5950-01-484-8753
NSN 6610-01-443-4055