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 6620-00-893-1303
NSN 4140-01-275-1700
NSN 5945-01-519-1299
NSN 6320-01-386-3491
NSN 5855-00-832-7316
NSN 6645-00-150-6526
NSN 5935-01-519-3944
NSN 5920-00-443-1907
NSN 5930-00-500-0215
NSN 5855-01-131-9336
NSN 5960-01-244-2835
NSN 5999-00-671-8331