4730-00-277-6373 LOCKNUT,TUBE FITTING Index 4730-00-277-6375 LOCKNUT,TUBE FITTING

National Stock Number:
4730-00-277-6374

Federal Supply Class:
4730

National Item Identification Number:
002776374

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:
AN6289-300624EATON AEROQUIP LLC
AN6289-306581ALLAN AIRCRAFT SUPPLY CO., LLC
AN6289-314397FABER ENTERPRISES, INC.
AN6289-322995CROWN FITTING CO INC
AN6289-334724ACRA AEROSPACE INC
AN6289-371563COLLINS ENGINEERING CORP
AS48410U583SAE INTERNATIONAL
AS51790U583SAE INTERNATIONAL
AS5179-030U583SAE INTERNATIONAL
SAE-AS48410U583SAE INTERNATIONAL
AS5179-0381343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS517981343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS484181343SOCIETY OF AUTOMOTIVE ENGINEERS INC
AN6289-388044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
PACKING RECESS DEPTH0.037 INCHES NOMINAL
PACKING RECESS DIAMETER0.546 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637,COMP 1141 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1141 OVERALL
NOMINAL THREAD SIZE0.375 INCHES
NOMINAL TUBE OUTSIDE DIAMETER0.188 INCHES
NUT HEIGHT0.250 INCHES NOMINAL
NUT STYLETUBE FITTING LOCKNUT
SPECIFICATION/STANDARD DATA88044-AN6289 GOVERNMENT STANDARD
WIDTH ACROSS FLATS0.625 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNF


Click here to Register for Free 30-day Trial

© 2026 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us