Wrenching facility per ms33787-38
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5895-00-358-1922
NSN 6110-00-300-1876
NSN 6685-00-518-5977
NSN 5915-01-332-2227
NSN 5920-00-647-3467
NSN 6685-01-144-1425
NSN 5925-01-142-1996
NSN 5975-01-104-4863
NSN 6240-00-143-6558
NSN 6240-01-445-4232
NSN 5960-01-604-1158
NSN 5998-01-412-0340