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 6645-01-290-1448
NSN 4140-01-082-3403
NSN 6645-00-860-3657
NSN 5990-00-765-1264
NSN 6610-01-121-4925
NSN 6685-00-770-2052
NSN 6130-00-070-1513
NSN 4140-01-122-8991
NSN 6150-01-237-2491
NSN 6610-00-911-8296
NSN 2925-01-562-8051
NSN 2925-01-089-6269