Upper hexagon castellated 6 places center to center along flats, 0.125 in. Min 0.155 in. Max through w, 0.187 in. Depth
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5855-00-560-0110
NSN 5895-00-443-7454
NSN 5935-00-542-3634
NSN 5998-01-211-6752
NSN 6145-01-573-7297
NSN 6645-01-041-3533
NSN 5990-01-204-7576
NSN 6645-00-829-8868
NSN 7035-01-623-6947
NSN 5975-01-352-6449
NSN 5895-01-173-3142
NSN 5985-01-429-9286