Cognizant service: navy;
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 6240-00-416-6140
NSN 5910-01-367-5460
NSN 2925-01-203-0493
NSN 6685-01-312-7483
NSN 6240-00-978-9752
NSN 5915-01-633-1624
NSN 5935-01-554-0579
NSN 5985-01-424-1097
NSN 5990-00-170-9553
NSN 5990-01-591-0701
NSN 5998-01-390-2037
NSN 5910-01-524-5680