4720-00-258-0488 HOSE ASSEMBLY,NONMETALLIC Index 4720-00-258-0490 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4730-00-258-0489

Federal Supply Class:
4730

National Item Identification Number:
002580489

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:
157618194A0199FINMECCANICA SPA
AN6289K1088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS48410U583SAE INTERNATIONAL
AS51790U583SAE INTERNATIONAL
AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS484181343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5179K100U583SAE INTERNATIONAL
SAE-AS48410U583SAE INTERNATIONAL
AS5179K1081343SOCIETY OF AUTOMOTIVE ENGINEERS INC


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.875 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-763 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLETUBE FITTING LOCKNUT
NUT HEIGHT0.391 INCHES NOMINAL
WIDTH ACROSS FLATS1.121 INCHES MINIMUM AND
1.128 INCHES MAXIMUM
PACKING RECESS DIAMETER1.040 INCHES MINIMUM AND
1.050 INCHES MAXIMUM
PACKING RECESS DEPTH0.049 INCHES MINIMUM AND
0.059 INCHES MAXIMUM
NOMINAL TUBE OUTSIDE DIAMETER0.625 INCHES


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