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 5960-01-599-9821
NSN 7035-00-018-0350
NSN 6650-01-584-8644
NSN 5965-01-554-9501
NSN 6145-01-118-6835
NSN 2925-01-594-5385
NSN 6220-01-423-9491
NSN 5910-01-251-3207
NSN 5895-00-977-7508
NSN 5985-00-071-7240
NSN 5999-00-590-0544
NSN 7035-01-487-6481