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		                        | National Stock Number:
 4730-01-570-2920
 
 Federal Supply Class:
 4730
 
 National Item Identification Number:
 015702920
 
 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:
 
 | 12-5 090192C | 0U583 | SAE INTERNATIONAL |  | 12-5 090192C | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | 
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 Techincal Specification:
 
 | NOMINAL TUBE OUTSIDE DIAMETER | 0.750 INCHES |  | NOMINAL THREAD SIZE | 1.062 INCHES |  | THREAD CLASS | 2A |  | THREAD QUANTITY PER INCH | 12 |  | THREAD SERIES | UN | 
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