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
4730PL20942749009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
AS48410U583SAE INTERNATIONAL
AS51790U583SAE INTERNATIONAL
AS484181343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AN6289K1088044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS5179K100U583SAE INTERNATIONAL
SAE-AS48410U583SAE INTERNATIONAL
AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5179K1081343SOCIETY OF AUTOMOTIVE ENGINEERS INC


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


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