A plain nut on which has been assembled a nonremovable washer.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5910-01-442-3981
NSN 5835-01-295-1318
NSN 5915-01-026-1009
NSN 5930-01-408-6922
NSN 5925-01-375-1252
NSN 5990-01-097-4721
NSN 6685-00-370-1612
NSN 6145-01-289-9267
NSN 5855-00-560-0110
NSN 6105-01-169-8019
NSN 6685-01-326-9187
NSN 5998-01-187-0869