TM  9-2320-283-20-3 Section II. ILLUSTRATED MANUFACTURING INSTRUCTIONS (Continued). MATERIAL  BLOCK STOCK  SIZE DESCRIPTION SPECIFICATION 1/2" OUTER DIAMETER TUBE,  NONMETALLIC SAEJ844,  TYPE  3A AND  FITTINGS SAEJ246  AND  J1131 NONMETALLIC    TUBE    PART    NUMBER END    FITTINGS    PART    NUMBER CUT ITEM TUBE  OR  HOSE LENGTH MANUFACTURED FROM END  FITTING END  FITTING NO. PART  NUMBER (INCHES) NSN PART    NUMBER PART    NUMBER 1 5571162 78.00 4720-01-040-0592 1480X8X8 1469X8 2 M/357-20075 41.00 4720-01-040-0592 1469X8 68NTA-8-6 3 5571110 17.00 4720-01-040-0592 279NTA-8-6 68NTA-8-6 4 5571110 17.00 4720-01-040-0592 279NTA-8-6 68NTA-8-6 5 M/357-20116 20.50 4720-01-040-0592 279NTA-8-6 279NTA-8-6 6 5571112 20.00 4720-01-040-0592 279NTA-8-6 279NTA-8-6 7 M/357-20055 22.50 4720-01-040-0592 279NTA-8-6 68NTA-8-6 8 M/357-20057 23.00 4720-01-040-0592 279NTA-8-6 68NTA-8-6 9 M/357-20074 75.00 4720-01-040-0592 1469X8 1480X8X8 10 M/357-20005 14.00 4720-01-040-0592 1469X8X12 68NTA-8-6 11 5571126 45.00 4720-01-040-0592 1469X8 68NTA-8-6 1469X8 1480X8X8 68NTA-8-6 279NTA-8-6 1469X8X12 Figure E-3. 1/2" NONMETALLIC TUBING AND FITTINGS. INSTRUCTIONS: 1. Determine tube part number needed from RPSTL and cut squarely to correct length  as  shown  above. 2. Select proper end fittings based upon tube part number. 3.   Insert tube into fitting and tighten nut with wrench until one thread remains visible on the fitting body. TA 237871 E-4