3020-00-178-0038 GEAR,SPUR Index 4730-00-178-0040 LOCKNUT,TUBE FITTING

National Stock Number:
4730-00-178-0039

Federal Supply Class:
4730

National Item Identification Number:
001780039

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:
J530P0307482GENERAL ELECTRIC COMPANY


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE1.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALALUMINUM ALLOY OVERALL
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2470 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS0.619 INCHES MINIMUM AND
0.627 INCHES MAXIMUM
PACKING RECESS DIAMETER0.546 INCHES NOMINAL
PACKING RECESS DEPTH0.037 INCHES NOMINAL
NOMINAL TUBE OUTSIDE DIAMETER0.188 INCHES


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