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 5990-00-607-9477
NSN 5990-00-003-4464
NSN 6650-01-143-1116
NSN 5920-00-089-8006
NSN 5985-01-620-8203
NSN 5895-01-285-2482
NSN 6620-01-068-4498
NSN 5855-01-247-0012
NSN 5975-00-018-0815
NSN 6220-01-375-7521
NSN 6240-01-252-9374
NSN 5999-01-536-1504