A nut having 12 drive points and 24 sides. The bearing surface may be washer faced. An integral locking feature is incorporated in the design of the head or in the threads.
Classification: Nuts of iron or steel
NSN 4140-00-451-8374
NSN 5950-01-097-5485
NSN 6150-01-141-9210
NSN 5930-01-437-9011
NSN 5915-01-003-7163
NSN 5965-01-392-1761
NSN 5915-00-914-8968
NSN 4140-01-029-2814
NSN 6610-01-345-9040
NSN 5930-00-435-9149
NSN 6130-00-191-4987
NSN 4140-01-218-4999