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		                             National Stock Number: 4730-01-310-7777
  Federal Supply Class: 4730
  National Item Identification Number: 013107777
  Description: ELBOW,TUBE TO BOSS
  Detail: A fitting that forms an angle of less that 180 degrees (3.141 radians) from a straight flow. One connecting end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side or heel inlet(s). It is designed to connect a tube or tube fitting to a boss or boss fitting on items such as tanks, housings, valve fittings, or the like. 
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  Manufacturer Information:
 | 4-161-425-01 | 80254 | TEXTRON LYCOMING INC WILLIAMSPORT PLANT |   
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  Techincal Specification:
 | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |   | THREADED EXTERNAL BOSS 2ND END |  | CONNECTION STYLE | FLARED (TUBE) 1ST END |   | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) 2ND END |  | SEAT ANGLE | 37.0 DEGREES 1ST END |  | THREAD SERIES DESIGNATOR | UNF 1ST END |   | UNF 2ND END |  | NOMINAL THREAD SIZE | 0.435 INCHES 1ST END |   | 0.432 INCHES 2ND END |  | LEG LENGTH | 0.819 INCHES NOMINAL 1ST END |   | 1.043 INCHES NOMINAL 2ND END |  | FLOW ANGLE | 45.0 DEGREES |  | SPECIAL FEATURES | BOSS END HAS EXTENDED WASHER BEHIND FIRST SET OF THREADS |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 80254 |  | DESIGN CONTROL REFERENCE | 4-161-425-01 |   
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