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 6645-01-655-8115
NSN 6685-01-440-3316
NSN 5895-01-028-3361
NSN 6620-01-557-0583
NSN 5925-01-476-0396
NSN 5965-00-396-3411
NSN 5935-01-502-6289
NSN 6220-00-067-7645
NSN 6150-00-137-2851
NSN 5910-00-471-8187
NSN 5965-01-480-3096
NSN 5960-01-512-0233