Material is copper c2700
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 5999-00-285-2987
NSN 6620-01-116-3983
NSN 6145-00-331-6814
NSN 6110-01-631-2278
NSN 5950-00-917-7679
NSN 5985-01-444-2111
NSN 5910-01-046-7914
NSN 5990-01-241-9472
NSN 5920-01-215-0497
NSN 6645-00-285-8781
NSN 6645-01-442-6476
NSN 5975-01-650-9543