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.)
NSN 6320-01-462-2295
NSN 6620-00-269-5168
NSN 5920-01-045-1484
NSN 6130-00-814-4247
NSN 5915-00-763-3649
NSN 5990-01-173-9531
NSN 6130-01-184-3987
NSN 6240-01-363-8258
NSN 2925-00-504-2363
NSN 5935-00-500-8678
NSN 6135-01-040-1446
NSN 5905-00-478-2612