A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-00-264-9504
NSN 6320-01-266-1612
NSN 5985-00-636-8689
NSN 5998-01-325-9271
NSN 6320-00-242-3300
NSN 5925-00-233-7523
NSN 6145-01-025-0353
NSN 5990-01-354-8965
NSN 5935-01-170-2312
NSN 5915-01-177-5060
NSN 6685-01-005-0325
NSN 5996-00-281-4500