According to cage 52845 part must be purchased through cage 9a017
A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.
NSN 6220-01-448-4110
NSN 5996-01-592-3011
NSN 5835-01-469-6009
NSN 6135-01-333-2540
NSN 2925-01-601-5050
NSN 5950-00-482-5105
NSN 5975-01-314-4975
NSN 6105-00-522-1445
NSN 5965-00-907-5183
NSN 5996-00-161-4202
NSN 7035-01-289-0684
NSN 5965-01-147-5655