A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6220-01-229-3722
NSN 6610-01-587-6068
NSN 6150-01-625-2906
NSN 6220-00-035-6736
NSN 2925-00-928-5931
NSN 2925-01-143-4229
NSN 6110-00-497-7139
NSN 5945-01-428-5888
NSN 5950-01-420-4208
NSN 5945-00-666-4700
NSN 6135-00-660-8654
NSN 5996-01-172-6078