3040-01-503-7722 COLLAR,SHAFT Index 5355-01-503-7724 LOCK,SHAFT

National Stock Number:
4730-01-503-7723

Federal Supply Class:
4730

National Item Identification Number:
015037723

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:
11467651-218876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL CORROSION RESISTING OVERALL
NUT STYLETUBE FITTING LOCKNUT
NUT HEIGHT0.310 INCHES NOMINAL
WIDTH ACROSS FLATS1.000 INCHES NOMINAL
PACKING RECESS DIAMETER1.000 INCHES NOMINAL
LUBRICATIONDRY FILM LUBRICANT
NOMINAL TUBE OUTSIDE DIAMETER0.500 INCHES


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