With two grooves 1/4 @in. Wide, 1/16 in. Deep, by 13/16 in. Long, 180 degrees apart. W/two hex socket set screws 3/8-16x7/16 in. Long
A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5930-00-073-2244
NSN 5965-00-258-6809
NSN 5835-01-133-6485
NSN 5999-01-545-7160
NSN 5895-01-133-9279
NSN 6610-01-323-7045
NSN 6620-01-029-3705
NSN 5905-01-165-1738
NSN 5835-00-438-4489
NSN 5930-01-244-7812
NSN 5999-00-189-0032
NSN 5895-01-069-2479