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 6620-00-707-4195
NSN 6220-01-316-6324
NSN 6320-00-139-1090
NSN 5990-01-434-7913
NSN 5915-00-030-0343
NSN 6645-00-467-6094
NSN 5975-01-601-5396
NSN 5985-01-036-4243
NSN 5990-01-100-1840
NSN 2925-01-025-0082
NSN 2925-00-902-3881
NSN 5985-01-583-2838