Hardness critical item
NSN 6610-01-644-2546
NSN 5999-00-285-2987
NSN 6610-01-519-7297
NSN 6320-00-553-1310
NSN 4140-01-152-0648
NSN 5999-01-373-2776
NSN 5985-01-164-6753
NSN 6145-01-086-5029
NSN 6110-01-351-4527
NSN 6220-01-542-8738
NSN 5925-01-388-3325
NSN 7035-01-049-6776
Last Updated: 08/10/2025