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.)
NSN 5930-01-297-9492
NSN 5999-01-064-2112
NSN 7035-00-565-9623
NSN 5996-01-322-5587
NSN 5985-01-415-2879
NSN 6645-01-089-6459
NSN 5975-01-163-6562
NSN 5920-01-433-1376
NSN 5925-01-025-0322
NSN 6135-01-292-1071
NSN 5965-01-651-0791
NSN 7035-00-517-8232