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 4140-01-263-6435
NSN 6685-01-634-0611
NSN 6220-00-546-1836
NSN 6150-00-306-9605
NSN 5985-00-019-1766
NSN 6620-01-524-0583
NSN 5915-01-257-9795
NSN 6620-01-061-0599
NSN 5999-00-877-3448
NSN 6645-00-967-8401
NSN 5996-01-520-4250
NSN 5930-01-389-6615