4730-00-203-3137 COUPLING,BOSS Index 4710-00-203-3141 TUBE,METALLIC

National Stock Number:
4730-00-203-3140

Federal Supply Class:
4730

National Item Identification Number:
002033140

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:
AN6289S414397FABER ENTERPRISES, INC.
AN6289S488044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS51790U583SAE INTERNATIONAL
AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5179R040U583SAE INTERNATIONAL
AS5179R0481343SOCIETY OF AUTOMOTIVE ENGINEERS INC
SAE AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
SAE-AS48410U583SAE INTERNATIONAL


Techincal Specification:
PACKING RECESS DEPTH0.042 INCHES NOMINAL
PACKING RECESS DIAMETER0.608 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 347 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 347 OVERALL
NOMINAL THREAD SIZE0.438 INCHES
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES
NUT HEIGHT0.281 INCHES NOMINAL
NUT STYLETUBE FITTING LOCKNUT
SPECIFICATION/STANDARD DATA88044-AN6289 GOVERNMENT STANDARD
WIDTH ACROSS FLATS0.688 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNF


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