protects case contents through chemical attack. Meets MIL-STD-810, MIL-STD-2073, ASTM 4169, & DC18 specifications, GSA Contract GS-15F-0019M, ATA compliant for air transport. -High-strength, lightweight, heat-treated aluminum 19" Versa-Racks (EIA standard) with a wide range of custom mounting options support and protect even delicate equipment from severe drops, aircraft turbulence, off-road travel, etc. -Precision-engineered 2" long elastomeric shockmounts match the weight range of your gear. -1"-2" of sway space within rackmount enclosures insulate cargo from shock and vibration with a cooling air flow - a major advantage over foam-captivated systems.