4730-00-517-8081 LOCKNUT,TUBE FITTING Index 4820-00-517-8083 VALVE,GLOBE

National Stock Number:
4730-00-517-8082

Federal Supply Class:
4730

National Item Identification Number:
005178082

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:
706476119207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
706476124892YORDE MACHINE PRODUCTS CO
706476197484EATON AEROSPACE LLC


Techincal Specification:
FABRICATION METHODMACHINED
PACKING RECESS DEPTH0.040 INCHES MINIMUM AND 0.054 INCHES MAXIMUM
PACKING RECESS DIAMETER1.671 INCHES MINIMUM AND 1.854 INCHES MAXIMUM
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE1.625 INCHES
NOMINAL TUBE OUTSIDE DIAMETER1.250 INCHES
NUT HEIGHT0.407 INCHES MINIMUM AND 0.425 INCHES MAXIMUM
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS1.875 INCHES NOMINAL
SURFACE TREATMENTCADMIUM OR DICHROMATE OR OXIDE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH12
THREAD SERIESUN


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