A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5999-01-243-9840
NSN 6650-00-758-4763
NSN 5920-01-555-6944
NSN 6150-01-640-8720
NSN 6645-01-266-8831
NSN 4140-01-500-8334
NSN 6320-01-624-0193
NSN 5835-01-355-3654
NSN 5925-00-179-8327
NSN 6135-01-413-4747
NSN 5895-00-170-4568
NSN 5855-01-297-1886