A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5920-00-322-8618
NSN 6320-01-618-7800
NSN 5915-01-309-0038
NSN 5999-01-020-5549
NSN 7035-00-064-7008
NSN 6145-00-402-5650
NSN 6130-01-429-7029
NSN 6685-01-541-7243
NSN 6320-01-526-5534
NSN 6240-01-099-8826
NSN 5930-01-600-5854
NSN 6650-01-493-3660