A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
NSN 7035-01-042-5308
NSN 5915-00-514-2098
NSN 5920-01-535-0796
NSN 5925-00-148-8241
NSN 4140-01-067-2587
NSN 7035-01-134-7080
NSN 6650-01-647-3365
NSN 6685-01-281-9525
NSN 5930-01-549-0395
NSN 5975-00-236-0841
NSN 6150-00-816-3467
NSN