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		                        | National Stock Number:
 4730-00-993-9130
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 009939130
 
 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:
 
 | 7M13D4 | 76301 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY OVERALL |  | SURFACE TREATMENT | ANODIZE INSIDE |  |  | ANODIZE OUTSIDE |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |  |  | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |  | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |  |  | THREADED INTERNAL BOSS 2ND END |  | CONNECTION STYLE | FLARED (TUBE) 1ST END |  |  | GASKET SEAL (BOSS) 2ND END |  | SEAT ANGLE | 37.0 DEGREES 1ST END |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |  | THREAD SERIES DESIGNATOR | UNF 1ST END |  |  | UNF 2ND END |  | NOMINAL THREAD SIZE | 0.438 INCHES 1ST END |  |  | 0.438 INCHES 2ND END |  | THREAD CLASS | 3A 1ST END |  |  | 3B 2ND END |  | LEG LENGTH | 0.894 INCHES NOMINAL 1ST END |  |  | 0.604 INCHES NOMINAL 2ND END |  | FLOW ANGLE | 90.0 DEGREES |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 76301 |  | DESIGN CONTROL REFERENCE | 7M13D4 | 
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