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 6610-00-106-7980
NSN 6610-00-017-8273
NSN 5930-01-634-0659
NSN 5990-01-455-8035
NSN 7035-01-190-7332
NSN 6130-00-852-0689
NSN 6135-00-932-3136
NSN 6620-00-433-9438
NSN 5895-00-105-2842
NSN 5915-01-203-7193
NSN 6135-01-622-1296
NSN 6685-00-801-7587