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 6145-01-515-4019
NSN 5910-00-007-0910
NSN 5999-01-630-8269
NSN 6620-01-426-2220
NSN 6645-01-049-6116
NSN 6650-01-250-1244
NSN 5999-00-419-6202
NSN 5996-00-678-2254
NSN 6130-01-455-0375
NSN 5905-01-387-1288
NSN 6685-00-038-7886
NSN 5950-00-929-2724