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		                        | National Stock Number:
 4730-00-734-5774
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 007345774
 
 Description:
 LOCKNUT,TUBE FITTING
 
 Detail:
 AN ITEM WITH INTERNAL MACHINE THREADS DESIGNED TO FIT THE EXTERNAL MACHINE THREADS OF A TUBE FITTING. IT HAS FLAT FACES, ONE OF WHICH HAS A COUNTERBORED RECESS TO ACCOMMODATE PACKING, PACKING OR SEALING RING(S), GASKET(S), AND THE LIKE. THE ITEM, WHEN INSTALLED, PROVIDES A METHOD OF LOCKING AND SEALING THE CONNECTION. SEE ALSO LOCKNUT, PIPE; NUT (1), TUBE COUPLING AND NUT (1), PLAIN, HEXAGON.
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 Manufacturer Information:
 
 | 10368711 | A486G | NIMIKKEISTOKESKUS NCB FINLAND |  | 4730PL1460816 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |  | AS4841 | 0U583 | SAE INTERNATIONAL |  | AS4841 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |  | AN6289-6C | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |  | AN6289C6 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |  | AS5179 | 0U583 | SAE INTERNATIONAL |  | AS5179J06 | 0U583 | SAE INTERNATIONAL |  | SAE-AS4841 | 0U583 | SAE INTERNATIONAL |  | AS5179J06 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |  | AS5179 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | 
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 Techincal Specification:
 
 | THREAD SERIES | UNF |  | NOMINAL THREAD SIZE | 0.562 INCHES |  | THREAD QUANTITY PER INCH | 18 |  | THREAD CLASS | 3B |  | THREAD DIRECTION | RIGHT-HAND |  | MATERIAL | STEEL CORROSION RESISTING OVERALL |  | SURFACE TREATMENT | PASSIVATE OVERALL |  | NUT STYLE | TUBE FITTING LOCKNUT |  | NUT HEIGHT | 0.297 INCHES NOMINAL |  | WIDTH ACROSS FLATS | 0.813 INCHES NOMINAL |  | PACKING RECESS DIAMETER | 0.733 INCHES NOMINAL |  | PACKING RECESS DEPTH | 0.042 INCHES NOMINAL |  | NOMINAL TUBE OUTSIDE DIAMETER | 0.375 INCHES |  | SPECIAL FEATURES | FLEET BALLISTIC MISSILE QUALITY,AS IDENTIFIED BY QUALITY CONTROL NUMBER POSO 912799 |  | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY SPECIAL FEATURES | 
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