Grade 5 zine-plated steel hex nut 3/8"-16 screw size, 9/16" wd, 21/64" ht
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 6145-00-876-4449
NSN 4140-01-461-2350
NSN 5975-01-207-5534
NSN 2925-01-004-5627
NSN 6320-00-636-0922
NSN 4140-00-264-5796
NSN 6240-01-459-2558
NSN 5990-01-432-4984
NSN 5915-01-052-3734
NSN 6135-01-617-0253
NSN 6645-01-277-9297
NSN 6620-01-474-4951