5310-01-301-3584 (84)
NSN 5310-01-301-3584 (NIIN 01-301-3584) is a hexagon plain nut in Federal Supply Class 5310, Nuts And Washers — a nut, flat on top and bottom having 6 flat sides. Manufacturer part number 84 (Frederick Custom Machining Inc, CAGE 23515).
NIIN assigned May 1989; DEMIL A (none required).