A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6105-01-457-7726
NSN 4140-00-580-8508
NSN 6135-01-142-6456
NSN 6220-01-202-0195
NSN 6150-00-107-8208
NSN 6620-00-862-5567
NSN 6145-01-219-8481
NSN 6240-01-257-1052
NSN 6645-01-251-7887
NSN 5915-01-215-1473
NSN 5920-01-069-0270
NSN 5945-01-027-0724