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 6130-01-630-2342
NSN 7035-01-445-3563
NSN 5975-00-653-9167
NSN 5996-00-382-0281
NSN 5985-00-073-6553
NSN 5855-01-544-7588
NSN 5945-01-307-3574
NSN 5895-01-247-7672
NSN 5855-01-258-6180
NSN 4140-01-545-6020
NSN 6685-00-267-9480
NSN 5855-01-018-1247