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 2925-00-445-1511
NSN 6610-00-277-7206
NSN 5960-01-512-0233
NSN 5965-01-100-1195
NSN 6135-00-062-5080
NSN 5930-00-767-7317
NSN 6135-00-369-2368
NSN 5999-01-634-0576
NSN 6145-00-931-7274
NSN 6135-01-444-6824
NSN 6650-01-030-5545
NSN 5895-01-550-0772