Coupling, 0.250 in.Thk;
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 6320-00-242-3300
NSN 6320-00-139-1090
NSN 5915-01-410-7732
NSN 5985-01-586-0132
NSN 6135-00-497-0491
NSN 5998-01-167-3671
NSN 6110-01-509-9887
NSN 5855-01-110-9564
NSN 6320-00-925-0558
NSN 6645-00-235-4685
NSN 5950-00-042-8902
NSN 5910-00-170-8271