The Tricon covered by this specification is intended for the storage, transportation and distribution of dry cargo. These Tricons are based on commercial designs and manufactured using commercial processes. They are further modified for military unique requirements which are identified within this specification for operation in an extreme environment, under conditions typically found in military operations. Military unique requirements include, but are not limited to the following: NBC survivability; military tie downs, corrosion resistance; storage and transit in temperatures from -40 °F (-40 degrees Celsius (°C)) to +160 °F (+71.1 °C); internally air transportable by a variety of military aircraft; and externally air transportable from a CH-47 helicopter by sling. Further military unique modifications to Tricons may include, but are not limited to the following: field petroleum systems; field hygiene systems; command and control posts; and chapels. Army users shall contact the Tankautomotive and Armaments Command (TACOM) Natick Integrated Logistics Support Center (ILSC) - AMSTA-LC-CESI, (508) 233-6002 for Tricon ordering requirements. Other services may also contact the TACOM ILSC for Tricon ordering requirements. CARC green 383, color number 34094 of FED-STD-595 is the default paint requirement for the Tricon described within this specification, and the NSN for this Tricon is 8150-01-579-3761. Other NSNs are available for ordering non-CARC and additional interior and exterior colors for Tricons manufactured to this specification (see 6.2). Contact the Natick ILSC for further guidance and ordering.