A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5905-00-038-4051
NSN 5855-00-821-7512
NSN 5895-00-783-3416
NSN 5999-01-191-4476
NSN 5996-01-248-9699
NSN 6685-00-274-5533
NSN 6240-00-112-9008
NSN 5855-01-088-8700
NSN 5895-01-005-2922
NSN 5996-01-503-0203
NSN 6145-01-425-8644
NSN 6240-01-100-1279