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 6685-01-057-4340
NSN 6135-00-170-8819
NSN 6620-01-483-1138
NSN 5996-00-553-7348
NSN 6135-00-593-6831
NSN 5945-01-166-2012
NSN 5985-01-302-6340
NSN 5945-01-071-5033
NSN 5985-00-624-0166
NSN 5965-01-005-0341
NSN 6220-00-431-9844
NSN 6620-01-014-7192