Magnetic permeability shall be less than 1.2 before fabrication and not greater than 2.0 after fabrication as measured in 200 oersted field
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 5855-01-264-8599
NSN 5910-01-142-9577
NSN 5930-01-318-8311
NSN 6240-01-224-0052
NSN 5998-01-548-3707
NSN 6610-00-653-8456
NSN 5990-01-147-5225
NSN 6645-01-044-6376
NSN 5999-01-066-1386
NSN 6320-01-064-0372
NSN 6130-01-526-0554
NSN 6110-01-221-0483