A part, assembly, or system identified as essential to weapon system perfomance or operation to preserve life and safety of personnel
NSN 5835-01-566-5462
NSN 5930-00-610-6741
NSN 5998-01-521-2197
NSN 5999-01-030-6775
NSN 7035-00-916-9380
NSN 5950-01-182-3760
NSN 2925-01-021-7563
NSN 5910-00-990-2284
NSN 5945-01-365-9750
NSN 6620-01-652-4349
NSN 5990-00-033-8128
NSN 6645-00-678-9656