Steel is composition 1649 or 1767
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 6150-01-521-3585
NSN 4140-00-597-5260
NSN 6150-01-461-9281
NSN 5905-01-484-5168
NSN 5996-01-131-9353
NSN 6110-01-205-6276
NSN 6645-01-501-0576
NSN 5975-01-262-3495
NSN 6130-01-164-3732
NSN 6610-01-424-3213
NSN 6620-01-381-6225
NSN 5915-01-057-6798