5330-00-865-4937 GASKET AND PREFORMED PACKING SET Index 3020-00-865-4940 GEAR,INTERNAL

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.


Manufacturer Information:
516-1414593PC29180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
THREAD SERIESUN
NOMINAL THREAD SIZE1.625 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALALUMINUM ALLOY OVERALL
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS1.938 INCHES NOMINAL
PACKING RECESS DIAMETER1.854 INCHES NOMINAL
PACKING RECESS DEPTH0.054 INCHES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER1.250 INCHES


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