A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-01-048-3014
NSN 5925-00-262-6087
NSN 6150-01-202-1005
NSN 5920-01-658-4332
NSN 6610-01-261-4487
NSN 5965-01-352-1951
NSN 5920-01-040-7718
NSN 6610-00-186-9180
NSN 5895-01-519-8062
NSN 5965-01-419-2251
NSN 6145-01-051-9685
NSN 6220-01-555-5705