5340-01-490-4324 COVER,PROTECTIVE,DUST AND MOISTU Index 5320-01-490-4326 RIVET,BLIND

National Stock Number:
4730-01-490-4325

Federal Supply Class:
4730

National Item Identification Number:
014904325

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:
AN6289T688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
PACKING RECESS DEPTH0.042 INCHES NOMINAL
PACKING RECESS DIAMETER0.733 INCHES NOMINAL
MATERIALTITANIUM ALLOY OVERALL
NOMINAL TUBE OUTSIDE DIAMETER0.375 INCHES
NOMINAL THREAD SIZE0.563 INCHES
NUT HEIGHT0.297 INCHES NOMINAL
NUT STYLETUBE FITTING LOCKNUT
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT
WIDTH ACROSS FLATS0.813 INCHES NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNJF
THREAD QUANTITY PER INCH18


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