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 6320-01-512-2031
NSN 4140-00-996-2248
NSN 5925-01-449-2188
NSN 6240-00-908-5069
NSN 5985-01-234-5924
NSN 5996-01-310-2986
NSN 5998-00-732-8480
NSN 6320-01-335-8336
NSN 6320-00-216-8779
NSN 6645-01-547-3224
NSN 5920-01-106-1137
NSN 6685-01-562-4645