Critical hardness
NSN 6620-01-442-7951
NSN 5965-01-633-8849
NSN 5910-01-611-1951
NSN 6685-00-105-4469
NSN 6610-01-510-8687
NSN 5835-00-594-4921
NSN 5920-01-152-4036
NSN 5925-01-229-1716
NSN 5835-00-310-6807
NSN 6320-00-433-2773
NSN 5920-01-150-6870
NSN 5950-01-412-7878
Last Updated: 03/01/2025