The article suggests the methodology for evaluating the aramid fibers friction coefficient in the "thread-to-thread" friction regime. This is essential for manufacturing the fabric fibrous structures used in the ballistic protection items of equipment. The test pattern represents a thread moving through the stationary loop that allows calculating the friction coefficient according to the Euler formula when testing on the conventional stretching apparatus without any appurtenances. We have examined the friction of various threads and loose ropes in dry and wet states and demonstrated a significant increase in the friction coefficient when moisturizing the threads. The aramid fibers with the crystalline structure (Kevlar, Armalon) have a higher friction coefficient compared to the fibers which have an amorphous structure (Rusar). The introduced material will be useful for the specialists who address the issues of testing the aramid fibers and producing the ballistic protection items which have aramid fibers in their composition.