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 6145-00-212-0422
NSN 7035-01-177-2807
NSN 5950-01-641-1397
NSN 5999-01-118-6301
NSN 5960-00-369-8018
NSN 4140-01-239-4498
NSN 5990-00-009-3291
NSN 5945-01-381-6300
NSN 5975-01-625-0604
NSN 5835-01-424-0054
NSN 5915-01-244-9394
NSN 6645-01-514-7901