A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5998-01-044-5816
NSN 6620-01-591-1331
NSN 6320-01-021-6633
NSN 6150-00-042-5660
NSN 6645-00-262-7448
NSN 5975-01-181-8328
NSN 6685-01-206-4974
NSN 6105-00-411-8585
NSN 6645-00-124-8680
NSN 7035-01-025-9312
NSN 6220-01-591-1346
NSN 6145-01-196-5211