ASC Engineered Solutions 1X1/2 GALV MI HEX BUSHING

It takes a 1 inch male pipe thread down to a 1/2 inch female pipe thread. The large end (1 inch MPT) threads into a fitting or coupling, and the 1/2 inch FPT side accepts your smaller pipe or nipple.

Yes. The threads are cut to ASME B1.20.1, which is the standard NPT tapered pipe thread spec, so it mates with any standard NPT pipe, nipple, or fitting in the matching size. Dowel it up with the usual pipe dope or PTFE tape on the male end.

It carries UL/FM approval, so it can be used on fire protection piping where a UL Listed, FM Approved malleable iron fitting is called for. It is a standard (STD) pressure class fitting rated to ASME B16.3.

The galvanizing is hot dip to ASTM A-153, which is the coating spec for hardware and gives a heavier zinc layer than an electroplate. That is what makes it suitable for damp, exterior, and underground-adjacent service where a black iron fitting would rust. The body itself is malleable iron to ASTM A-197.

Yes, the ASC Engineered Solutions 1 x 1/2 galvanized hex bushing is made to ASME B16.3, which is the dimensional and pressure class standard for malleable iron threaded fittings. If your drawing calls for a Class 150 standard malleable iron reducing bushing to B16.3, this is the type of fitting being specified.

Order it as ASC Engineered Solutions part 319906681. Each piece weighs 0.19 lbs, which matters if you are pricing freight on a full box for a job.

Mechanically yes, the NPT threads are identical, but joining galvanized to black iron in a wet line puts two dissimilar coatings together and the exposed steel is what corrodes first. On potable or wet systems most installers keep the whole run galvanized. For a dry line or a short transition it is common practice and this fitting threads in the same as any other B1.20.1 fitting.