0.375-16 brass jam nut
No other part numbers with same form, fit, and function found.
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 6105-00-160-7804
NSN 5990-01-058-4826
NSN 6320-01-359-3921
NSN 5950-01-167-8616
NSN 6240-01-038-3761
NSN 6240-00-777-4263
NSN 5950-00-608-4540
NSN 6130-00-904-8438
NSN 6645-00-536-1555
NSN 5965-00-400-6228
NSN 5855-00-951-6483
NSN 5935-00-250-8457