A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5950-01-512-1973
NSN 6320-01-123-2476
NSN 6610-00-038-8148
NSN 5855-01-088-8700
NSN 6610-01-124-8114
NSN 5965-00-978-8535
NSN 4140-01-058-2790
NSN 5998-01-005-0310
NSN 6105-00-169-8773
NSN 6620-01-278-8028
NSN 5905-01-630-2526
NSN 6620-01-247-4127