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 6220-01-179-3599
NSN 6150-01-093-0458
NSN 6645-01-337-1806
NSN 6135-01-455-9646
NSN 5915-01-382-4588
NSN 4140-01-371-0327
NSN 5998-00-585-0083
NSN 6650-01-573-7165
NSN 2925-01-136-2551
NSN 6685-00-061-6255
NSN 5950-01-123-8603
NSN 5925-01-095-9990