Mfr suggested name-male-female standoff; this item made from p/n 14030-h-ss-.305-12, cagec 51506
A standoff that must have a threaded end(s) or be internally threaded its full length. For items having external threads on both ends, see stud (as modified). For items with an outside contour that is the same for the entire length, are flat on top and bottom, having internal threads its full length, and the length does not exceed twice the width across the flats or outside diameter, see nut (as modified); use maximum dimensions(s) for compliance.
NSN 5950-01-415-0276
NSN 5925-01-388-3325
NSN 6150-01-468-0626
NSN 5965-01-390-1261
NSN 5990-01-408-6142
NSN 5990-00-539-7859
NSN 5996-01-633-0192
NSN 6150-00-275-4601
NSN 6110-01-530-8458
NSN 5920-00-791-2949
NSN 6240-00-263-0549
NSN 6240-01-572-6003