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 6220-01-291-9356
NSN 6240-01-645-4797
NSN 6685-00-448-0122
NSN 2925-01-633-4048
NSN 6620-00-730-8699
NSN 5905-01-040-8698
NSN 5915-01-014-6309
NSN 5935-01-630-9863
NSN 5990-01-487-0871
NSN 6110-01-388-6933
NSN 5985-01-641-6807
NSN 6220-01-468-6030