Material is aermet 100
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 6240-01-477-7794
NSN 5930-00-864-5094
NSN 6135-01-033-5052
NSN 5835-01-459-7428
NSN 5920-00-902-6827
NSN 5915-01-160-7123
NSN 5920-00-981-5821
NSN 5965-00-137-2605
NSN 6685-00-978-8608
NSN 5905-01-122-5079
NSN 2925-00-118-4887
NSN 6105-00-068-9357