A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6645-01-456-5011
NSN 5975-01-400-4204
NSN 5910-00-188-7579
NSN 5998-01-299-7796
NSN 5985-01-156-1379
NSN 5835-01-279-9508
NSN 5835-00-953-4061
NSN 5855-01-657-7657
NSN 5930-01-535-0280
NSN 5965-01-506-2926
NSN 6220-01-520-6281
NSN 5985-01-179-1830