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 5920-01-160-0057
NSN 6645-00-285-8781
NSN 5996-00-868-1388
NSN 6685-00-070-7259
NSN 6320-00-977-3930
NSN 6610-01-219-8656
NSN 6240-01-135-3874
NSN 5910-01-415-2463
NSN 6620-01-535-0070
NSN 6685-01-230-9116
NSN 5990-01-615-7823
NSN 4140-01-191-9282