A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5960-00-014-0951
NSN 6645-00-857-0410
NSN 6685-00-974-6966
NSN 5996-01-552-2502
NSN 6220-01-540-5924
NSN 4140-01-136-9802
NSN 6620-01-519-2628
NSN 5975-00-276-7559
NSN 5895-01-555-8360
NSN 6320-00-905-0543
NSN 5915-01-458-9598
NSN 5975-01-154-5643