A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-606-8924
NSN 5935-00-435-3965
NSN 6130-01-195-8728
NSN 6135-01-364-0667
NSN 6685-01-365-5682
NSN 5998-01-302-2428
NSN 5935-01-394-5339
NSN 5985-01-628-2624
NSN 6145-01-627-5093
NSN 6645-01-418-1657
NSN 5950-01-216-3360
NSN 5935-01-605-4812