Used on f75 type pump
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 6105-01-340-0710
NSN 5999-01-092-4942
NSN 5920-00-555-1877
NSN 5910-01-044-5886
NSN 6650-01-337-9538
NSN 5975-00-942-1925
NSN 2925-00-081-3547
NSN 5895-00-514-2905
NSN 5965-01-185-2026
NSN 6135-01-472-9011
NSN 5950-00-018-1460
NSN 6610-00-134-4902