Pump, raw water
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.)
NSN 4140-01-394-9252
NSN 5945-01-068-3503
NSN 6130-00-232-7617
NSN 5895-00-243-5531
NSN 2925-00-555-8836
NSN 5975-01-490-6156
NSN 4140-00-707-5963
NSN 5945-00-165-3878
NSN 6320-01-265-0665
NSN 5855-00-003-6408
NSN 5975-01-270-9346
NSN 6645-01-275-5328