A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6620-01-307-0311
NSN 5950-01-180-1357
NSN 5965-01-375-1317
NSN 5915-01-412-8357
NSN 2925-00-978-8277
NSN 5930-01-512-3908
NSN 6145-01-337-3930
NSN 5975-01-493-2332
NSN 6240-01-563-0096
NSN 5960-01-439-9517
NSN 6320-01-170-4068
NSN 7035-01-026-0117