A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-558-7502
NSN 5925-01-464-4551
NSN 6610-01-560-8227
NSN 6130-00-978-8987
NSN 5945-01-030-8035
NSN 5915-01-555-4239
NSN 5945-01-462-1555
NSN 6135-00-235-1938
NSN 6685-01-210-8175
NSN 5905-00-107-2621
NSN 6685-00-840-8606
NSN 6105-01-141-6359