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 6685-00-392-4577
NSN 5990-01-024-9659
NSN 6610-00-005-1847
NSN 6130-01-087-9093
NSN 5895-01-146-5382
NSN 5950-00-112-0938
NSN 6685-01-515-2520
NSN 6685-01-095-8220
NSN 5996-01-617-5731
NSN 6645-01-579-6304
NSN 6220-01-152-7042
NSN 5855-01-147-4785