Material classification

• class 1- ground radar equipment
• class 2- ground & vehicular radio equipment
• class 3- photographic equipment
• class 4- wire communications equipment
• class 5- wire and cable equipment
• class 6- miscellaneous equipment
• class 7- transmitting equipment
• class 8- radio receiving equipment
• class 9- power supplies
• class 10- public address and interphone
• class 11- electronic tubes. rectifiers and transmitting
• class 12- capacitors various
• class-13- capacitors fixed
• class 14- transformers and reactors
• class 15- resistors
• class 16- quarts crystal assembly
• class 17- test equipment
• class 18- miscellaneous
• class 19- antenna
• class 20- subscriber station equipment
• class 21- central office equipment or PBX
• class 22- manual switching
• class 23- carrier equipment
• class 24- repeaters
• class 25- outside plant
• class 26- test and adjustment equipment and supplies
• class-27- transportation equipment
• class 28- range and interval equipment
• class 29- signal lamp equipment
• class 30- interphone, call and public address system not associated
• class 31- microphones, headsets, Ect.
• class 32- spare miscellaneous & miscellaneous components
• class 33- wire and cable
• class 34- wire, insulated
• class 35- flexible cable and cordage, both single and multi conductor
• class 36- lead sheath cable
• class 37- subterranean cable
• class 38- submarine cable
• class 39- galvanized steel strand and wire rope
• class 40- transmission line
• class 41- wire and cable handling equipment
• class 42- hardware
• class 43- building and installation materials
• class 44- textiles
• class 45- leather
• class 46- wood. exclusive of building construction and poles
• class 47- stationary
• class 48- oils and greases
• class 49- office furniture and equipment
• class 50- machinery, equipment, tools, and supplies
• class 51- live stock equipment and supplies
• class 52- meteorological equipment
• class 53- supplies including paints, acids, chemicals, and gasses
• class 54- reproduction and photographic equipment
• class 55- power supplies
• class 56- test and adjustment equipment
• class 57- vehicles
• class 58- materials