Points of hexagon to have v shaped notch from 0.020 to 0.030 deep by 90.0 degrees
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 6620-01-348-1893
NSN 4140-01-126-7368
NSN 5935-00-928-3825
NSN 6685-00-836-1636
NSN 5998-01-166-9389
NSN 5925-01-054-2340
NSN 7035-01-202-9250
NSN 6130-00-709-0765
NSN 6135-01-598-9890
NSN 6240-00-372-4841
NSN 5905-01-099-3000
NSN 6685-01-241-8006