Working liquid NGZH-5u (TU 38.401-58-57-93) is synthetic flame safety, erosion-resistant liquid made on the basis of aethers of phosphoric acid, containing a package of the additives improving вязкостные, antihydrolytic, antioxidizing, anticorrosive and antierosive properties.
Has spontaneous ignition temperature 595-630°C, slowly burns in a flame, does not support burning and does not extend a flame. It is completely compatible to liquids NGZH-4 and NGZH-4u.
Apply in hydrosystems of planes IL-86, IL-96, TU-204, etc. in a range of temperatures from -60 to +150°C at nominal pressure to 21 megapascal.

Colour: violet, dark blue, transparent
Viscosity index, not less: —
Density at 20°C, kg/m3, no more: 1060-1080
Viscosity kinematic, cSt, at 50°C, not less: 8,5
Viscosity kinematic, cSt, at 40°C, not less: —
Viscosity kinematic, cSt, at -60°C, not less: 4200
Acid number, mg, no more: 0.08
Flash temperature, in an open crucible, °C, not more low: 155
Hardening temperature, °C, not above: -65
Turbidity temperature, °C, not above: —

Data on operational temperatures represent values which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mehaniko-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.