The 202A174-3/42-0 from TE Connectivity / Raychem Brand is black color heat shrink boot with shell size 74. This heat shrink boot has 2.039" (51.79mm) to 1.390" (35.31mm) large diameter and 2.039" (51.79mm) to 0.630" (16.00mm) small diameter. This is polyolefin (PO), semi-rigid heat shrink boot with length of 5.130" (130.30mm). Operating temperature range is from -55 to 135 °C (-67 to 275 °F).