Ext circ groove, 0.250 in. Radius
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 5935-00-683-1623
NSN 5855-00-560-0110
NSN 5950-00-997-2501
NSN 5965-01-230-2350
NSN 6685-01-655-8157
NSN 6130-00-528-7838
NSN 5965-00-752-1007
NSN 6145-01-536-0189
NSN 7035-01-560-2623
NSN 5999-00-554-9037
NSN 4140-01-043-5089
NSN 5930-00-358-7844