Critical hardness
NSN 6620-01-122-0238
NSN 6685-01-003-9343
NSN 6220-01-379-3498
NSN 5855-00-198-3197
NSN 6105-01-396-4421
NSN 6130-01-126-2032
NSN 5945-00-294-4869
NSN 5835-00-594-4921
NSN 6145-01-472-9227
NSN 5915-01-544-3252
NSN 6650-01-408-2633
NSN 6150-00-959-6164
Last Updated: 02/19/2025