Critical hardness
NSN 6620-01-067-8336
NSN 6105-01-528-8027
NSN 5910-01-411-4349
NSN 6685-00-970-9110
NSN 6650-01-502-5157
NSN 5985-01-295-7893
NSN 5920-01-326-1399
NSN 6650-00-450-0787
NSN 5965-00-396-3411
NSN 5915-00-686-8356
NSN 6610-01-501-6630
NSN 5990-01-612-5323
Last Updated: 03/01/2025