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


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