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 5855-01-330-1918
NSN 5895-01-256-9399
NSN 5975-00-565-1071
NSN 5855-01-411-3360
NSN 5835-01-397-2865
NSN 5945-00-500-5603
NSN 6685-00-148-8383
NSN 6145-01-571-3436
NSN 5905-01-333-8813
NSN 5910-01-301-2246
NSN 6610-00-832-3131
NSN 5950-00-941-8246