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 5905-01-259-1946
NSN 5910-01-080-5740
NSN 5960-01-034-2218
NSN 5996-01-359-5912
NSN 5985-01-464-3153
NSN 6105-01-353-3251
NSN 5950-00-839-1291
NSN 5990-01-395-4194
NSN 5990-00-678-0885
NSN 5950-00-914-4167
NSN 5975-01-607-3914
NSN 5975-01-445-6261