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 6645-01-090-2555
NSN 6685-01-056-5283
NSN 5915-00-984-3296
NSN 6130-01-139-3701
NSN 6220-01-279-4281
NSN 5915-01-076-2951
NSN 5905-01-268-0498
NSN 4140-00-111-3247
NSN 5945-01-105-6669
NSN 6110-01-216-8651
NSN 5915-00-498-8596
NSN 5965-01-218-7795