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: Nuts of iron or steel
NSN 5999-00-900-8180
NSN 5905-01-394-1211
NSN 5975-00-451-0230
NSN 6105-01-063-7704
NSN 5996-01-150-7480
NSN 6130-00-402-0559
NSN 5945-01-201-9436
NSN 5945-01-360-5341
NSN 5920-01-412-8415
NSN 6645-01-533-8408
NSN 5915-00-054-4029
NSN 6620-01-651-1315