Critical hardness
NSN 6135-00-347-0595
NSN 5835-01-059-5535
NSN 2925-01-101-4655
NSN 5920-01-376-4422
NSN 5855-00-198-3197
NSN 5960-01-384-4576
NSN 5920-01-487-3700
NSN 5920-01-198-6216
NSN 6110-00-819-4917
NSN 5930-01-555-7912
NSN 5950-01-065-2288
NSN 5985-01-092-0782
Last Updated: 01/04/2025