5.120 in.Id, 2.000 in.Lg o/a, 1.250 in.Inside lg, 0.380 in.Wall thk; heating system, acft;
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 5996-00-777-0173
NSN 5835-01-254-8584
NSN 6130-01-559-0397
NSN 6320-00-539-9283
NSN 5965-01-542-5319
NSN 5950-00-130-2584
NSN 5950-00-160-8869
NSN 6145-00-448-8264
NSN 7035-01-391-7470
NSN 5935-01-292-5228
NSN 5910-01-055-3644
NSN 6135-01-215-1245