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 5965-00-549-0220
NSN 7035-01-123-8723
NSN 5895-01-244-9819
NSN 5950-01-227-2466
NSN 5925-01-269-1105
NSN 6105-01-315-1128
NSN 5985-00-498-2253
NSN 5930-00-789-7999
NSN 5975-01-532-6671
NSN 6130-00-596-9565
NSN 4140-01-227-9726
NSN 6645-01-014-2849