A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery.
Classification: Nuts of iron or steel
NSN 6240-00-777-1878
NSN 5975-01-521-3635
NSN 2925-01-235-7507
NSN 5915-00-062-9409
NSN 5965-01-479-9155
NSN 6105-00-915-6601
NSN 6240-01-148-9044
NSN 6130-00-629-0738
NSN 6685-00-418-5960
NSN 4140-01-061-0440
NSN 6150-01-085-6923
NSN 6650-01-495-1269