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 6130-01-330-7878
NSN 5999-00-043-2702
NSN 6685-01-170-7375
NSN 7035-00-252-7467
NSN 7035-00-541-8516
NSN 7035-01-438-2108
NSN 5905-01-426-4301
NSN 2925-00-660-8131
NSN 2925-00-587-8968
NSN 5835-01-043-1576
NSN 7035-00-275-5604
NSN 5930-01-250-6901