A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6220-01-406-5351
NSN 6645-01-327-6896
NSN 6320-01-573-2394
NSN 6145-00-216-6613
NSN 2925-00-465-6354
NSN 5910-01-346-2325
NSN 5910-01-018-0145
NSN 6610-01-629-4140
NSN 6145-01-479-3354
NSN 4140-01-347-3344
NSN 5920-00-646-5430
NSN 5835-00-954-2833