What is a primary responsibility of the S-6 (Aviation Support Division)?

The primary responsibility of the S-6 (Aviation Support Division) is to account for aviation material. This involves managing the logistics associated with aviation support, including the inventory, tracking, and distribution of parts and equipment necessary for aircraft operations. Effective accounting of aviation material ensures that all required components are available for maintenance and operational readiness, which is critical for the overall mission success of the Navy's aviation units.

The other choices pertain to different divisions or support functions within the Navy. Issuing retail items typically aligns with the S-1 or supply functions, maintaining postal equipment is the responsibility of the S-2 or postal division, and operating the general mess falls under the S-3 or culinary services. Each of these functions supports the Navy's broader logistical and operational efforts, but they do not define the primary focus of the S-6.