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 6620-01-643-5531
NSN 6650-00-462-4700
NSN 6645-01-432-1068
NSN 5960-00-158-4841
NSN 5990-01-345-1468
NSN 6145-01-432-4965
NSN 6135-01-220-7193
NSN 7035-01-189-7367
NSN 6645-01-162-8023
NSN 4140-01-547-3656
NSN 5920-00-536-1842
NSN 5985-01-565-7417