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		                        | National Stock Number:
 4730-00-734-5771
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 007345771
 
 Description:
 NUT,TUBE COUPLING
 
 Detail:
 AN INTERNALLY THREADED NUT WHICH HAS EITHER AN INTERNAL SEAT OR SHOULDER AND/OR IS DESIGNED TO BE USED WITH A FERRULE, TO MATE WITH THE SEAT OF AN EXTERNALLY THREADED TUBE FITTING TO FORM A LEAKPROOF CONNECTION. EXCLUDES NUT (1), TUBE COUPLING, REDUCING; AND NUT (1), UNION.
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 Manufacturer Information:
 
 | 16BTXS | 45681 | PARKER-HANNIFIN CORPORATION |  | AN818 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |  | AS4841 | 0U583 | SAE INTERNATIONAL |  | SAE-AS4841 | 0U583 | SAE INTERNATIONAL |  | AN818-16 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | 
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 Techincal Specification:
 
 | THREAD SERIES | UN |  | NOMINAL THREAD SIZE | 1.312 INCHES |  | THREAD QUANTITY PER INCH | 12 |  | THREAD CLASS | 3B |  | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | STEEL OVERALL |  | SURFACE TREATMENT | ZINC OVERALL |  | NUT STYLE | TUBE COUPLING |  | NUT HEIGHT | 1.125 INCHES NOMINAL |  | WIDTH ACROSS FLATS | 1.500 INCHES NOMINAL |  | LENGTH TO SHOULDER | 0.962 INCHES NOMINAL |  | SMALLEST INSIDE DIAMETER | 1.089 INCHES NOMINAL |  | NOMINAL TUBE OUTSIDE DIAMETER | 1.000 INCHES |  | SPECIAL FEATURES | FLEET BALLISTIC MISSILE QUALITY, AS IDENTIFIED BY QUALITY CONTROL NO. POSO912802 |  | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY SPECIAL FEATURES |  | SPEC/STD CONTROLLING DATA |  |  | MANUFACTURERS CODE | 88044 |  | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | AN818-16 | 
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