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 5960-00-752-6175
NSN 4140-01-442-5155
NSN 5915-01-251-1371
NSN 4140-01-298-1630
NSN 5855-00-433-2377
NSN 6135-00-519-1325
NSN 6620-01-195-0190
NSN 6685-01-507-1780
NSN 6685-00-316-2601
NSN 6220-01-265-2705
NSN 6645-00-429-0172
NSN 6620-00-780-7786