Used on f-4, phantom aircraft
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.
NSN 4140-00-643-3744
NSN 6135-01-343-9457
NSN 6610-00-473-0548
NSN 5905-00-385-9337
NSN 6685-00-526-9433
NSN 2925-01-255-6394
NSN 5985-01-622-5532
NSN 7035-00-371-7749
NSN 6150-01-197-6993
NSN 6320-00-149-7570
NSN 5905-01-389-8263
NSN 5920-00-081-9156