A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6620-01-168-8450
NSN 5990-00-277-3763
NSN 5925-00-229-8024
NSN 5996-00-279-5806
NSN 5935-00-846-6380
NSN 2925-00-001-4604
NSN 5935-00-705-6051
NSN 5975-00-292-3250
NSN 5925-01-607-1548
NSN 6130-00-075-2202
NSN 5910-01-279-7992
NSN 5925-01-232-0246