9.000 in.Lg, id recessed to match coupling; housing, air conditioning acft;
An item composed of one or more materials, molded, compressed, and/or baked into a rigid covering of irregular shapes and sizes. it is designed to cover air ducts and/or air duct fittings used in air conditioning, heating, cooling, pressurizing and de-icing systems to restrict the dissipation of heat. it may completely or partially encase the item for which designed. it may be furnished with or without fillers, cement, and/or separate or attached accessories for installation, (excluding flexible air duct covering and rigid pipe and pipe fitting coverings used in construction and building materials). Excludes insulation blanket, thermal, aircraft; insulation pipe fitting covering, thermal; and insulation sleeving, thermal.
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 5920-00-043-0004
NSN 5935-01-542-5390
NSN 5925-01-332-8993
NSN 6105-01-382-2349
NSN 5935-00-940-8672
NSN 2925-01-523-3607
NSN 6685-01-437-6292
NSN 5855-00-160-2286
NSN 5905-01-111-1081
NSN 5835-01-576-9013
NSN 5945-01-369-6958
NSN 7035-01-461-1066