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National Stock Number: 4730-00-453-6188
Federal Supply Class: 4730
National Item Identification Number: 004536188
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:
4730PL1152566 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | AN6289J6 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
PACKING RECESS DIAMETER | 0.728 INCHES MINIMUM AND 0.738 INCHES MAXIMUM | PACKING RECESS DEPTH | 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM | MATERIAL | STEEL COMP 304 OVERALL | NOMINAL THREAD SIZE | 0.562 INCHES | NOMINAL TUBE OUTSIDE DIAMETER | 0.375 INCHES | NUT STYLE | TUBE FITTING LOCKNUT | NUT HEIGHT | 0.813 INCHES NOMINAL | SPECIFICATION/STANDARD DATA | 88044-AN818 GOVERNMENT STANDARD | WIDTH ACROSS FLATS | 0.809 INCHES MINIMUM AND 0.816 INCHES MAXIMUM | SURFACE TREATMENT | PASSIVATE OVERALL | THREAD DIRECTION | RIGHT-HAND | THREAD CLASS | 3B | THREAD SERIES | UNJF | THREAD QUANTITY PER INCH | 18 |
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