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 5925-01-234-1965
NSN 5910-00-035-5534
NSN 6105-01-438-6955
NSN 6150-00-394-4934
NSN 6645-01-615-4448
NSN 6110-01-204-3842
NSN 6685-01-653-6434
NSN 5975-01-107-5884
NSN 5835-00-168-9623
NSN 5925-00-453-4106
NSN 5915-01-390-3462
NSN 5999-01-275-4359