Item must comply with requirements of defense supply center philadelphia production standard no. Po0153nrp
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 5835-01-154-8916
NSN 5998-01-004-9244
NSN 5998-01-014-8564
NSN 5930-01-463-4704
NSN 6130-01-011-4644
NSN 5855-01-421-7691
NSN 5905-00-424-3099
NSN 5895-01-608-3809
NSN 5998-01-464-3254
NSN 5999-01-643-2110
NSN 6220-01-411-6664
NSN 5935-00-033-5655