5.400 in.Id, 0.380 in.Wall thk, 1.310 in.Lg, two 0.220 diameter vent holes 180 degrees apart; 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 6130-01-424-7104
NSN 5950-01-147-5662
NSN 5895-00-550-1113
NSN 6645-01-508-9074
NSN 6220-01-423-0696
NSN 6240-01-190-3541
NSN 5915-01-266-1157
NSN 5960-00-489-2805
NSN 5930-01-043-2276
NSN 5965-00-546-4402
NSN 5996-01-441-7910
NSN 5996-01-440-9660