2a and b8
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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 2925-01-264-4092
NSN 6685-00-161-5752
NSN 5990-01-548-3711
NSN 5925-01-534-4866
NSN 2925-01-629-9416
NSN 5999-01-478-3974
NSN 6135-01-205-5965
NSN 5950-00-863-8959
NSN 6145-01-658-3675
NSN 5985-00-144-8170
NSN 5910-01-036-7931
NSN 6145-01-291-4252