4710-01-228-0318 TUBE,METALLIC Index 4820-01-228-0320 VALVE,CHECK

National Stock Number:
4730-01-228-0319

Federal Supply Class:
4730

National Item Identification Number:
012280319

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:
25-00043-10300724RAYTHEON COMPANY
25-A034D-101KY21OLYMPUS AMERICA INC
9002-NPADX1VN02AIRDALE EXPRESS LLC
25-A034D-1029192OLYMPUS SCIENTIFIC SOLUTIONS TECHNOLOGIES INC.
2810-15-000134280WAVETEK RF PRODUCTS INC
9002-NP73734FEDERAL SCREW PRODUCTS INC.


Techincal Specification:
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.375 INCHES
NOMINAL TUBE OUTSIDE DIAMETER0.187 INCHES
NUT HEIGHT0.088 INCHES NOMINAL
NUT STYLETUBE FITTING LOCKNUT
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
SURFACE TREATMENTNICKEL OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
THREAD SERIESUNEF


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