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 6620-00-720-3278
NSN 6645-01-035-9792
NSN 5915-00-222-6031
NSN 6645-01-627-4123
NSN 5855-01-480-6386
NSN 4140-01-360-6744
NSN 6220-01-415-2351
NSN 5895-01-294-3886
NSN 5990-00-162-7273
NSN 6150-01-549-9445
NSN 5930-01-200-2965
NSN 6110-00-211-7435