12 inches olng
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 6110-01-383-2161
NSN 6110-01-512-8742
NSN 6145-00-677-0140
NSN 5996-00-245-6273
NSN 5905-00-525-3747
NSN 7035-01-528-2654
NSN 5855-00-427-7848
NSN 6220-01-421-0352
NSN 5930-01-458-1555
NSN 6685-01-127-7885
NSN 6110-00-074-1442
NSN 5975-01-634-0678