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 5935-00-794-0451
NSN 5935-01-322-0504
NSN 5925-01-310-8456
NSN 5930-00-615-6049
NSN 6150-00-320-6069
NSN 5920-01-658-0436
NSN 5910-01-268-8366
NSN 6130-01-391-4572
NSN 2925-01-230-8057
NSN 5985-01-367-2842
NSN 6130-01-218-4382
NSN 6150-01-379-3377