Aircraft f-4
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 5998-00-343-7435
NSN 5990-01-651-0170
NSN 5935-01-090-8190
NSN 6240-00-009-4117
NSN 5855-01-542-9059
NSN 6110-01-354-6175
NSN 5996-00-226-5364
NSN 5975-01-526-9890
NSN 5895-00-916-1728
NSN 6610-00-965-8524
NSN 5985-01-465-4141
NSN 7035-01-102-3788