Tubing Adapter Blueprint 2.00" OD x 1.375" ID x 3" - 1.125"-12 TPI RH Thread

This document is a simple machining blueprint for a tubing adapter (threaded bung/insert) intended for use with 2.00" OD, 1.375" ID tubing with a 0.3125" wall thickness. The part is a cylindrical adapter 3.00" in overall length, with a larger-diameter shank/head measuring 2.00" in diameter and 0.750" long, stepping down to a 1.375" diameter body that slides inside the tubing. The part is bored and threaded through with a 1.125" x 12 TPI right-hand thread. A note states the thickness of the adapter at the shank is 0.25", and the part is to be made from mild steel. A notation "5/16" appears in the upper-left corner, likely a page or date marker. The drawing is dimensioned with a side-view cross section showing the head, the reduced body, and the internal threaded bore indicated by dashed lines. This blueprint would be used by a fabricator or machinist to produce a threaded tube adapter, commonly used for suspension links, tie rods, or steering components where a threaded rod end must attach to steel tubing. It was uploaded to a 1991 Ford Bronco gallery alongside similar adapter drawings for other tube sizes.