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National Stock Number: 4730-00-865-4939
Federal Supply Class: 4730
National Item Identification Number: 008654939
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:
516-1414593PC291 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
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Techincal Specification:
THREAD SERIES | UN | NOMINAL THREAD SIZE | 1.625 INCHES | THREAD QUANTITY PER INCH | 12 | THREAD CLASS | 3B | THREAD DIRECTION | RIGHT-HAND | MATERIAL | ALUMINUM ALLOY OVERALL | NUT STYLE | TUBE FITTING LOCKNUT | WIDTH ACROSS FLATS | 1.938 INCHES NOMINAL | PACKING RECESS DIAMETER | 1.854 INCHES NOMINAL | PACKING RECESS DEPTH | 0.054 INCHES NOMINAL | NOMINAL TUBE OUTSIDE DIAMETER | 1.250 INCHES |
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