First projection has an additional projection 0.515 in. L, 0.304 in. Min. 0.311 in. Max. Dia. And actually is where thds are located
No other part numbers with same form, fit, and function found.
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 5985-01-155-7187
NSN 6220-01-397-8060
NSN 4140-01-589-9363
NSN 6135-01-440-9412
NSN 5855-01-362-3640
NSN 5999-00-225-8612
NSN 5935-00-239-2140
NSN 6145-01-328-5998
NSN 6130-01-224-2737
NSN 2925-01-519-6726
NSN 5965-00-267-4173
NSN 5945-01-119-5402