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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6645-00-351-8580
NSN 5895-01-250-4498
NSN 6645-00-176-0223
NSN 6105-01-428-8921
NSN 6645-00-166-7926
NSN 6645-01-575-6955
NSN 5905-01-326-9814
NSN 6135-01-247-5660
NSN 5996-00-932-3796
NSN 5985-01-316-7732
NSN 6105-00-911-2783
NSN 6110-00-998-3599