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 6240-01-477-5323
NSN 5905-01-165-9158
NSN 6645-00-315-9254
NSN 5965-00-963-1796
NSN 6150-00-477-5174
NSN 6110-01-461-2301
NSN 6135-00-152-8729
NSN 5945-01-329-8506
NSN 5945-01-353-1402
NSN 6610-00-553-5103
NSN 2925-00-759-5465
NSN 6135-01-422-1440