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 6145-01-474-1252
NSN 5855-00-631-4565
NSN 5905-00-193-8296
NSN 5975-01-527-0395
NSN 6320-01-017-5274
NSN 2925-01-252-8049
NSN 5945-01-240-1314
NSN 6135-01-631-4483
NSN 2925-00-617-0826
NSN 5855-00-688-9954
NSN 6610-01-316-1194
NSN 6145-01-224-7228