| MATERIAL | FIBERGLASS AND |
| RUBBER CHLOROPRENE CLASS CR ALL PLIES |
| INSIDE DIAMETER | 2.500 INCHES NOMINAL BOTH ENDS |
| OUTSIDE LENGTH | 18.250 INCHES NOMINAL BOTH ENDS |
| MAXIMUM OPERATING PRESSURE | 4.00 POUNDS PER SQUARE INCH |
| EXTERNAL OPERATING PRESSURE | 4.500 POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | DUCT SHALL BE ABLE TO WITHSTAND RELATIVE HUMIDITY OF 100%, WITH CONDENSATION IN THE FORM OF EITHER WATER OR FROST; DUCT SHALL BE ABLE TO WITHSTAND AIR PRESSURE REPRESENTING AN ALTITUDE OF 10,000 FEET OPERATING AND 80,000 FEET NON-OPERATING; DUCT SHALL BE ABLE TO WITHSTAND FUNGUS GROWTH AS FOUND IN TROPICAL CLIMATES; DUCT SHALL BE ABLE TO WITHSTAND SALT SEA ATMOSPHERE IN COASTAL AREAS; DUCT SHALL BE ABLE TO WITHSTAND RAINFALL AS ENCOUNTERED IN ANY LOCALE; DUCT SHALL BE ABLE TO WITHSTAND SAND AND DUST PARTICLES AS ENCOUNTERED IN DESERT AREAS |
| SPECIAL TEST FEATURES | 2 SOFT ENDS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | DUCT, AIR, FLEXIBLE AND SEMI-RIGID |