Gamma Electronics Blog
Changes to 5 of Gamma’s Heat Shrink Part Numbers
In recent weeks we’ve been making changes to the Heat Shrink portion of our website and thought it would also be a good time to make some minor changes to some of our heat shrink part numbers, (5 changes in total). These changes are being made to better standardize and clarify some of our heat shrink product numbers.

For example, all of our adhesive lined heat shrink products usually have “AL”, (or “Adhesive Lined”), in the part number, (with exceptions being for some of our specialty heat shrink products). Our lone 6:1 Heat Shrink product is adhesive lined yet did not have AL in the product number. As a result we have changed the 6:1 Heat Shrink product number from GMT-621 to GMT-621AL.
Listed below are the five heat shrink products with their former and newly updated part numbers.
Previous Part Number | New Part Number | Image |
GMT-201AL | GMT-221AL | ![]() |
GMT-221 | GMT-221M | ![]() |
GMT-301ALSR | GMT-321ALSR | ![]() |
GMT-320AL | GMT-321AL | ![]() |
GMT-621 | GMT-621AL | ![]() |