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: Nuts of iron or steel
NSN 6220-00-078-6021
NSN 5965-00-908-1402
NSN 5905-01-031-5922
NSN 5895-01-068-4545
NSN 5975-00-103-1695
NSN 6645-01-580-9570
NSN 6240-01-447-6857
NSN 2925-01-327-3069
NSN 4140-01-411-5908
NSN 6110-01-411-5166
NSN 6645-01-051-7447
NSN 7035-01-145-5059