A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6150-01-173-3957
NSN 6130-01-361-8628
NSN 5996-00-583-9498
NSN 5950-00-920-5288
NSN 6650-01-367-5172
NSN 6620-01-057-2580
NSN 6610-00-661-1797
NSN 5935-00-073-5331
NSN 5855-01-234-5346
NSN 6610-00-974-6607
NSN 5999-00-267-5765
NSN 6150-01-357-0667