A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
NSN 5996-01-617-2500
NSN 5835-01-642-4705
NSN 5895-01-106-4161
NSN 5998-00-227-2118
NSN 5960-00-841-5884
NSN 6610-00-166-0233
NSN 5945-01-281-2234
NSN 5920-01-097-9927
NSN 6685-01-049-3726
NSN 5925-01-376-5548
NSN 5925-01-279-0011
NSN 5905-01-537-7431