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National Stock Number: 4730-00-659-8976
Federal Supply Class: 4730
National Item Identification Number: 006598976
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.
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Manufacturer Information:
AS4841 | 0U583 | SAE INTERNATIONAL | AS4841 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | BACN10DU | 81205 | THE BOEING COMPANY | BACN10DU8C | 82918 | THE BOEING COMPANY | BACN10DU8J | 81205 | THE BOEING COMPANY | BACN10DU8J | 82918 | THE BOEING COMPANY |
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Techincal Specification:
PACKING RECESS DEPTH | 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM | PACKING RECESS DIAMETER | 0.915 INCHES MINIMUM AND 0.925 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL COMP 304 OVERALL | NOMINAL THREAD SIZE | 0.750 INCHES | NOMINAL TUBE OUTSIDE DIAMETER | 0.500 INCHES | NUT HEIGHT | 0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM | NUT STYLE | TUBE FITTING LOCKNUT | WIDTH ACROSS FLATS | 0.996 INCHES MINIMUM AND 1.003 INCHES MAXIMUM | THREAD CLASS | 3B | THREAD DIRECTION | RIGHT-HAND | THREAD QUANTITY PER INCH | 16 | THREAD SERIES | UNF |
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