MIL-PRF-85725A (AS), PERFORMANCE SPECIFICATION RACK, INTEGRATED AVIONICS, FORCED AIR COOLED, GENERAL SPECIFICATION FOR (20 MAY 1998) [SUPERSEDING MIL-R-85725 (AS)]., This specification covers forced-air-cooled, integrated avionics racks, herein after referred to as racks, used for various military avionics systems. The racks are designed to accommodate Standard Electronic Modules (SEMs) using multiple tiers.