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 5990-01-056-6413
NSN 6135-01-408-0313
NSN 7035-01-114-3134
NSN 6645-00-285-8781
NSN 5990-01-084-0807
NSN 6105-01-278-1375
NSN 5835-01-193-6192
NSN 6145-01-519-8210
NSN 6610-00-482-2265
NSN 5985-01-546-6285
NSN 5990-00-309-0023
NSN 6135-01-130-3145