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 5855-01-369-5037
NSN 6135-00-477-8847
NSN 5905-00-218-1237
NSN 6220-01-290-4739
NSN 6110-00-766-0886
NSN 7035-01-278-1379
NSN 5910-01-104-5004
NSN 5945-01-403-2800
NSN 6610-01-326-8660
NSN 5990-01-423-8189
NSN 5960-01-142-1995
NSN 7035-01-555-0169