Coaxial attenuators are intended for use in laboratory measurements as attenuation measures. Attenuators can be used as working standards of the attenuation coefficient to check the technical characteristics of scalar and vector circuit analyzers. The housings and nuts of the attenuators are made of stainless steel. The central conductors are made of beryllium bronze and coated with wear-resistant gold. The insulator used has a low dielectric constant and increased strength. The materials used and the design of the attenuators ensure high stability of parameters, small reflections and uneven attenuation with a large number of connection cycles in the operating temperature range from -60 to +85 °C. On an individual order, it is possible to supply attenuators with a maximum operating temperature up to +110 °C.