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


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