Which form is a temporary hand receipt valid for 30 days or less?

The correct answer is the DA Form 3161, which is specifically used as a temporary hand receipt for items that are being issued on a temporary basis. This form is typically valid for a period of 30 days or less and serves to document the transfer of property accountability for the duration of the temporary issue. It allows units to manage their equipment and supplies effectively by ensuring that there is a record of who has possession of the items, even if the hand receipt is not permanent.

In contrast, DA Form 2062 is utilized for permanent hand receipts and does not have the temporary limitation that is characteristic of the DA Form 3161. DA Form 1974 is used for a different purpose, specifically related to equipment maintenance, and DA Form 3078 is used for Class I supplies. Each of these forms serves distinct functions within supply operations, but only the DA Form 3161 is designated for temporary hand receipts valid for 30 days or less.