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
AS5179R040U583SAE INTERNATIONAL
AS5179R0481343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
SAE-AS48410U583SAE INTERNATIONAL
SAE AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC


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 TUBE OUTSIDE DIAMETER0.250 INCHES
NOMINAL THREAD SIZE0.438 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 SERIESUNF
THREAD QUANTITY PER INCH20


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